CN104039000B - A kind of method of power adjustment and base station - Google Patents
A kind of method of power adjustment and base station Download PDFInfo
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- CN104039000B CN104039000B CN201310073137.5A CN201310073137A CN104039000B CN 104039000 B CN104039000 B CN 104039000B CN 201310073137 A CN201310073137 A CN 201310073137A CN 104039000 B CN104039000 B CN 104039000B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
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Abstract
A kind of method of power adjustment and base station, this method are applied to base station side, comprising: the terminal in instruction service range is adjusted the transmission power of specified sub-frame of uplink using the specified power adjustment in specified closed power adjustment amount group;Wherein, specified closed power adjustment amount group is one in 2 or more closed power adjustment amount groups of the sub-frame of uplink configuration that base station is terminal;It include more than one power adjustment in each closed power adjustment amount group in 2 or more closed power adjustment amount groups.Another method is applied to base station side, comprising: the terminal in instruction service range is adjusted the transmission power of specified sub-frame of uplink in conjunction with the domain TPC in the descending control information format sent to the terminal using specified deviant;Wherein, specified deviant is one in 2 or more power offset values of the sub-frame of uplink configuration that base station is terminal.It include configuration module and indicating module in the base station.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a power adjustment method and a base station.
Background
In a TDD mode of a Time Division Duplex (TDD) system or a Long Term Evolution (LTE) system, uplink and downlink subframe configurations of the TDD system are not in a one-to-one correspondence because a Time Division multiplexing mode is used between an uplink service and a downlink service. The configuration format of the 7-seed frame is shown in table 1 according to the difference of the uplink and downlink service rates.
TABLE 1 subframe configuration Format schematic
Here, "D" denotes a subframe dedicated to Downlink transmission, "U" denotes a subframe dedicated to Uplink transmission, and "S" denotes a special subframe used for three fields, i.e., a Downlink Pilot Time Slot (DwPTS), a Guard Period (GP), and an Uplink Pilot Time Slot (UpPTS).
The downlink subframe is used for transmitting downlink services, the uplink subframe is used for transmitting uplink services, and each uplink and downlink configuration corresponds to the capacity of a system for transmitting uplink and downlink services. As can be seen from table 1, the configuration of the subframe with the strongest downlink service capability is configuration 5, and the corresponding uplink/downlink service rate ratio is 1: 9. The subframe configuration with the strongest uplink service capability is configuration 0, and the corresponding uplink and downlink service rate ratio is 3: 2. Once any of the 7 subframe configurations given in table 1 is determined, the system will transmit uplink and downlink subframes according to the determined subframe configuration, and accordingly the capability of the system to transmit uplink and downlink traffic is also determined on the premise that the subframe configuration is not changed.
However, on the premise of the given subframe configuration, if the range of the dynamic change of the uplink and downlink traffic is large, the subframe configuration in the original system cannot reasonably adapt to the new service requirement in the given time. Therefore, in order to reasonably utilize channel resources and meet the requirement of dynamic change of uplink and downlink services, the transmission direction of the subframes which can be dynamically configured can be changed under the condition that the configuration of the atomic frame is not changed, so that the number of the uplink and downlink subframes in one wireless frame is changed, and the aim of dynamically matching the uplink and downlink traffic is fulfilled.
In the existing standard, the transmission power adjustment of the uplink signal includes two parts of open loop compensation and closed loop adjustment. In the closed-loop adjustment, a base station sends a closed-loop adjustment command (TPC) to a terminal (User Equipment, UE for short) to notify the terminal of the specific power adjustment value, and the terminal dynamically adjusts the transmission power of its uplink signal according to the value of the power adjustment value indicated by the TPC command sent by the base station. Specifically, the TPC command is notified to the UE through a TPC field in a Downlink Control Information format0/3/4/3a (Downlink Control Information format0/3/4/3a, abbreviated as DCI format0/3/4/3 a). The TPC field in DCI format0/4 has 2 bits, each TPC field in DCI format3 also has 2 bits, and bit '00' represents a TPC command 0 in the TPC field, bit '01' represents a TPC command 1 in the TPC field, bit '10' represents a TPC command 2 in the TPC field, and bit '11' represents a TPC command 3 in the TPC field, respectively. The closed loop power adjustment for each TPC command is shown in table 2.
Closed loop power adjustment corresponding to the value indicated in the TPC field in Table 2DCIformat0/3/4
Each TPC field in DCI format3A has 1bit, and bit '0' represents TPC command 0 in the TPC field, and bit '1' represents TPC command 1 in the TPC field. The closed loop power adjustment for each TPC command is shown in table 3.
Table 3DCIformat3A closed loop power adjustment corresponding to the value indicated in the TPC field
In the existing time division duplex system, the subframe configurations of different cells or transmitting nodes are the same, and the transmission directions of subframes at the same position of different cells are consistent. In this way, the uplink subframes in the same positions of different cells are only interfered by the uplink subframes of other cells, and the Interference is small, as shown in fig. 1, the Interference level of the subframe in a single position, that is, the ratio of Interference Over Thermal Noise (IoT) is not more than 25 dB. The step size of the existing closed-loop adjustment is 4dB at most, and the transmission power of the uplink signal can be corrected through the existing closed-loop adjustment so as to resist the interference.
But in a scenario where the subframe configuration of the tdd system is dynamically changed, different cells may have different subframe configurations. In this way, different transmission directions may occur for co-located subframes in neighboring cells or different cells. For example, in a heterogeneous network scenario consisting of a macro base station (macro eNB) and a pico base station (pico eNB), the subframe configurations of the macro eNB and the pico eNB are different, so that the subframe directions in the serving cells of the macro eNB and the pico eNB are the same at some subframe positions, the subframe direction in the serving cell of the macro eNB is uplink at some positions, and the subframe direction in the serving cell of the pico eNB is downlink, as shown in fig. 2. When such a scenario occurs, the serving cell of the macro eNB may be interfered by the downlink transmission of the serving cell of the pico eNB in the uplink transmission direction. However, the uplink transmission of one base station is interfered by the downlink transmission of another base station due to the difference of the subframe transmission directions between different pico enbs, and the interference is relatively strong. As shown in FIG. 3, the IoT can reach 60-65 dB at maximum at certain subframe locations, and the number of severely interfered subframes increases significantly. If it is desired to increase the transmission power of the uplink signal to combat such interference between the base stations, the terminal is required to increase the transmission power for a short time. However, the closed-loop power adjustment step length adopted in the existing standard is too short, and the goal of rapidly increasing the large power in a short time cannot be achieved. And because the subframe configuration can be dynamically configured, the position of the subframe generating strong interference is not fixed.
Disclosure of Invention
The invention aims to provide a power adjustment method and a base station, aiming at a scene that the interference change of certain uplink subframe positions is severe due to the dynamic configuration of factor frames in a time division duplex system.
In order to solve the above problem, the present invention provides a power adjustment method, applied to a base station side, including:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the 2 or more closed-loop power adjustment amount groups, each closed-loop power adjustment amount group includes one or more power adjustment values.
Further, the air conditioner is provided with a fan,
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to select a corresponding closed loop power adjustment amount group by sending a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling to the terminal; instructing the terminal to select a corresponding power adjustment amount from a selected closed loop power adjustment amount group by transmitting a TPC field in a Downlink Control Information (DCI) format to the terminal;
wherein, M bits are used for indicating closed loop power adjustment amount groups to the terminal in the RRC signaling or the MAC signaling, each closed loop power adjustment amount group corresponds to one value of the M bits one to one, and M is a positive integer; and each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set one by one.
Further, the air conditioner is provided with a fan,
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to select a corresponding closed loop power adjustment amount group by adding N bits in a DCI format sent to the terminal; instructing the terminal to select a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group through an original TPC domain in the DCI format;
the increased N bits are used for indicating closed-loop power adjustment quantity groups to the terminal, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; and each value of an indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
Further, the air conditioner is provided with a fan,
in the 2 or more closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different.
Further, the air conditioner is provided with a fan,
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in other closed-loop power adjustment amount groups.
Further, the air conditioner is provided with a fan,
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to use the appointed power adjustment quantity in the appointed closed-loop power adjustment quantity group by sending RRC signaling or MAC signaling to the terminal and combining with a TPC (transmit power control) domain in a DCI (Downlink control information) format sent to the terminal;
wherein, 1bit in the RRC signaling or the MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to use the appointed power adjustment quantity in the appointed closed loop power adjustment quantity group by adding 1bit in a DCI format sent to the terminal and combining a TPC field in the DCI format;
wherein the increased 1bit is used to indicate whether the bit number of the TPC field is extended; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the increased 1bit is located in a TPC field in the DCI format.
Further, the air conditioner is provided with a fan,
the increased 1bit is located in other fields in the DCI format.
Further, the air conditioner is provided with a fan,
the method for indicating the terminal in the service range to adjust the transmitting power of the designated uplink subframe by using the designated power adjustment value in the designated closed-loop power adjustment value group specifically comprises the following steps:
and instructing the terminal to use a power adjustment value specified by the existing protocol to adjust the transmitting power of the uplink subframe which is not interfered by the downlink subframe.
Further, the air conditioner is provided with a fan,
the method for indicating the terminal in the service range to adjust the transmitting power of the designated uplink subframe by using the designated power adjustment value in the designated closed-loop power adjustment value group specifically comprises the following steps:
and for each uplink subframe, the base station instructs the terminal to use a specified power adjustment value in a specified closed-loop power adjustment value group on a downlink subframe corresponding to the uplink subframe to adjust the transmitting power of the uplink subframe corresponding to the downlink subframe.
Further, the air conditioner is provided with a fan,
for each terminal within the service range of the base station, the base station divides the uplink subframe of the terminal into more than one uplink subframe group;
and the base station instructs the terminal to use the same specified power adjustment value in a specified group of closed-loop power adjustment values to adjust the specified transmitting power of the uplink subframes belonging to the same uplink subframe group.
Correspondingly, the invention also provides a power adjustment method, which is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the 2 or more closed-loop power adjustment amount groups, each closed-loop power adjustment amount group includes one or more power adjustment values.
Further, the air conditioner is provided with a fan,
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
selecting a corresponding closed loop power adjustment amount group according to a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling sent by the service base station; selecting a corresponding power adjustment quantity from a selected closed loop power adjustment quantity group according to a received TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent by the service base station;
wherein, there are M bits in the RRC signaling or MAC signaling for indicating closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group corresponds to one value of the M bits one by one, and M is a positive integer; and each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set one by one.
Further, the air conditioner is provided with a fan,
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
selecting a corresponding closed loop power adjustment quantity group according to N bits added in a DCI format sent by the service base station; selecting a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group according to the original TPC domain in the DCI format;
the increased N bits are used for indicating closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; and each value of an indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
Further, the air conditioner is provided with a fan,
in the 2 or more closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different.
Further, the air conditioner is provided with a fan,
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in other closed-loop power adjustment amount groups.
Further, the air conditioner is provided with a fan,
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
according to RRC signaling or MAC signaling sent by the service base station, combining a TPC domain in a received DCI format and using a specified power adjustment quantity in a specified closed-loop power adjustment quantity group;
wherein, 1bit in the RRC signaling or the MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
according to 1bit added in the DCI format sent by the service base station, combining a TPC (transmit power control) domain in the DCI format and using a specified power adjustment quantity in a specified closed-loop power adjustment quantity group;
wherein the increased 1bit is used to indicate whether the bit number of the TPC field is extended; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the increased 1bit is located in a TPC domain in the DCI format or in other domains in the DCI format.
Further, the air conditioner is provided with a fan,
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
and adjusting the transmitting power of the uplink subframe which is not interfered by the downlink subframe by using a power adjustment value specified by the existing protocol according to the instruction of the service base station.
Further, the air conditioner is provided with a fan,
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
for each uplink subframe, the terminal receives, on a downlink subframe corresponding to the uplink subframe, an instruction sent by the serving base station to adjust the transmit power of the uplink subframe corresponding to the downlink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group for the terminal.
Further, the air conditioner is provided with a fan,
the uplink subframe of the terminal is divided into more than one uplink subframe group;
and according to the indication of the service base station, the terminal uses the same specified power adjustment value in a specified group of closed-loop power adjustment quantities to adjust the specified transmitting power of the uplink subframe belonging to the same uplink subframe group.
In addition, the invention also provides a power adjusting method, which is applied to the base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal.
Further, the air conditioner is provided with a fan,
the indicating that the terminal in the service range uses the designated offset value specifically includes:
n bits are used for indicating an offset value in a signaling sent to the terminal by the base station; and each offset value configured for the uplink subframe of the terminal corresponds to one value of the N bits one to one.
Further, the air conditioner is provided with a fan,
the method for indicating the terminal in the service range to use the designated offset value and adjust the transmission power of the designated uplink subframe by combining the TPC domain in the DCI format sent to the terminal specifically comprises the following steps:
and the base station sends RRC signaling or MAC signaling with a bit value representing an offset value to the terminal, and instructs the terminal to adjust the transmitting power of the designated uplink subframe by using the sum of the designated offset value and a power adjustment value represented by an indication bit in a TPC domain in a DCI format sent to the terminal.
Further, the air conditioner is provided with a fan,
the method for indicating the terminal in the service range to use the designated offset value and adjust the transmission power of the designated uplink subframe by combining the TPC domain in the DCI format sent to the terminal specifically comprises the following steps:
and the base station adds an indication bit in the DCI format0/4 sent to the terminal, and instructs the terminal to adjust the transmission power of the specified uplink subframe by using the sum of the offset value corresponding to the indication bit and the power adjustment value represented by the indication bit in the TPC domain in the DCI format sent to the terminal.
Further, the air conditioner is provided with a fan,
the method for indicating the terminal in the service range to use the designated offset value and adjust the transmission power of the designated uplink subframe by combining the TPC domain in the DCI format sent to the terminal specifically comprises the following steps:
the base station adds N-bit indication bits in a TPC domain of a DCI format3/3A sent to the terminal, indicates the terminal to use an offset value corresponding to the N-bit indication bits, and adjusts the transmission power of a specified uplink subframe by combining the TPC domain;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the base station adds 1bit in the DCI format3/3a sent to the terminal, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Further, the air conditioner is provided with a fan,
and the base station sends RRC signaling or MAC signaling to the terminal, wherein 1bit in the RRC signaling or MAC signaling is used for indicating whether the bit number of the TPC domain in the DCI format3/3A is increased by N bits.
Further, the air conditioner is provided with a fan,
and the base station adds N bits of indication bits in a partial TPC domain of the DCI format3/3A transmitted to the terminal.
Further, the air conditioner is provided with a fan,
the instructing the terminal to use the designated offset value, and adjusting the transmission power of the designated uplink subframe by combining with the TPC field in the DCI format sent to the terminal, specifically includes:
and indicating the terminal to use the offset value as 0, and adjusting the transmitting power of the uplink subframe which is not interfered by the downlink subframe by combining a TPC (transmit power control) domain in a DCI (Downlink control information) format sent to the terminal.
Further, the air conditioner is provided with a fan,
instructing the terminal to use the designated offset value, and adjusting the transmission power of the designated uplink subframe by combining with the TPC field in the DCI format sent to the terminal, specifically including:
and the base station indicates the terminal to adjust the transmitting power of the appointed uplink subframe by using the sum of the appointed offset value and the power adjustment quantity corresponding to the TPC domain in the DCI format sent to the terminal.
Further, the air conditioner is provided with a fan,
for each terminal within the service range of the base station, the base station divides the uplink subframe of the terminal into more than one uplink subframe group;
and the base station indicates the terminal to use the same assigned offset value and combines a TPC (transmit power control) domain in a DCI (Downlink control information) format sent to the terminal to adjust the assigned transmission power of the uplink subframes belonging to the same uplink subframe group.
Correspondingly, the invention also provides a power adjustment method, which is applied to a terminal side and comprises the following steps:
according to the indication of a service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received Downlink Control Information (DCI) format to adjust the transmission power of a specified uplink subframe;
wherein the specified offset value is one of more than 2 power offset values configured by the serving base station for the uplink subframe of the terminal.
Further, the air conditioner is provided with a fan,
the using the specified offset value according to the indication of the serving base station specifically includes:
n bits are used for indicating an offset value in a signaling received by the terminal and sent by the serving base station; and the service base station corresponds each deviation value configured for the uplink subframe of the terminal to one value of the N bits.
Further, the air conditioner is provided with a fan,
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and the terminal indicates RRC signaling or MAC signaling adopting an offset value according to the received bit value sent by the serving base station, and adjusts the transmitting power of the designated uplink subframe by using the sum of the designated offset value and the power adjustment value indicated by the indication bit in the TPC domain in the received DCI format.
Further, the air conditioner is provided with a fan,
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and the terminal adjusts the transmission power of the specified uplink subframe by using the sum of the offset value corresponding to the indication bit and the power adjustment value represented by the indication bit in the TPC domain in the received DCI format according to the received indication bit added in the DCI format0/4 sent by the serving base station.
Further, the air conditioner is provided with a fan,
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
the terminal adjusts the transmission power of the appointed uplink subframe by using the offset value corresponding to the N-bit indication bit and combining the TPC domain according to the N-bit indication bit added in the TPC domain of the DCI format3/3A sent by the service base station;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
adding 1bit to the DCI format3/3a received by the terminal from the serving base station, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Further, the air conditioner is provided with a fan,
and the terminal receives RRC signaling or MAC signaling sent by the serving base station, where 1bit in the RRC signaling or MAC signaling is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Further, the air conditioner is provided with a fan,
and adding N bits of indication bits into a partial TPC field of the DCI format3/3A received by the terminal from the serving base station.
Further, the air conditioner is provided with a fan,
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and according to the indication of the service base station, the terminal uses the offset value as 0 and combines the TPC domain in the received DCI format to adjust the transmitting power of the uplink subframe which is not interfered by the downlink subframe.
Further, the air conditioner is provided with a fan,
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and the terminal adjusts the transmitting power of the appointed uplink subframe by using the sum of the appointed offset value and the power adjustment quantity corresponding to the TPC domain in the received DCI format according to the indication of the service base station.
Further, the air conditioner is provided with a fan,
the uplink subframe of the terminal is divided into more than one uplink subframe group;
and the terminal uses the same assigned offset value according to the indication of the service base station and combines the TPC domain in the received DCI format to adjust the assigned transmission power of the uplink subframe belonging to the same uplink subframe group.
Accordingly, the present invention provides a base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
and the indicating module is used for indicating the terminal in the service range to use the appointed power adjustment value in the appointed closed-loop power adjustment quantity group to adjust the transmitting power of the appointed uplink subframe.
Further, the air conditioner is provided with a fan,
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indicating module is used for indicating the terminal to select a corresponding closed loop power adjustment amount group by sending a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling to the terminal; instructing the terminal to select a corresponding power adjustment amount from a selected closed loop power adjustment amount group by transmitting a TPC field in a Downlink Control Information (DCI) format to the terminal;
wherein, M bits are used for indicating closed loop power adjustment amount groups to the terminal in the RRC signaling or the MAC signaling, each closed loop power adjustment amount group corresponds to one value of the M bits one to one, and M is a positive integer; and each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set one by one.
Further, the air conditioner is provided with a fan,
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indicating module is used for indicating the terminal to select a corresponding closed loop power adjustment amount group by adding N bits in a DCI format sent to the terminal; instructing the terminal to select a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group through an original TPC domain in the DCI format;
the increased N bits are used for indicating closed-loop power adjustment quantity groups to the terminal, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; and each value of an indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
Further, the air conditioner is provided with a fan,
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indication module is used for indicating the terminal to use the specified power adjustment quantity in the specified closed-loop power adjustment quantity group by sending RRC signaling or MAC signaling to the terminal and combining with a TPC (transmit power control) domain in a DCI (downlink control information) format sent to the terminal;
wherein, 1bit in the RRC signaling or the MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indication module is configured to indicate, by adding 1bit to a DCI format transmitted to the terminal and combining a TPC field in the DCI format, that the terminal uses a specified power adjustment amount in a specified closed-loop power adjustment amount group;
wherein the increased 1bit is used to indicate whether the bit number of the TPC field is extended; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the indicating module is configured to instruct a terminal within a service range to adjust the transmission power of a designated uplink subframe by using a designated power adjustment value in a designated closed-loop power adjustment amount group, and specifically includes:
the indication module is used for indicating the terminal to use a power adjustment value specified by the existing protocol to adjust the transmitting power of the uplink subframe which is not interfered by the downlink subframe.
Further, the air conditioner is provided with a fan,
the indicating module is configured to instruct a terminal within a service range to adjust the transmission power of a designated uplink subframe by using a designated power adjustment value in a designated closed-loop power adjustment amount group, and specifically includes:
the indicating module is used for indicating the terminal to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of the uplink subframe corresponding to the downlink subframe on the downlink subframe corresponding to each uplink subframe.
Further, the air conditioner is provided with a fan,
the configuration module is further configured to divide uplink subframes of each terminal within the service range of the base station into more than one uplink subframe group;
the indicating module is used for indicating the terminal to use the same specified power adjustment value in the specified closed loop power adjustment quantity group to adjust the specified transmitting power of the uplink subframe belonging to the same uplink subframe group.
In addition, the present invention also provides a base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
and the indicating module is used for indicating the terminal in the service range to use the appointed offset value and adjusting the transmitting power of the appointed uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal.
Further, the air conditioner is provided with a fan,
the indicating module is configured to indicate a terminal in a service range to use a specified offset value, and specifically includes:
the indication module is used for indicating an offset value by N bits in a signaling sent to the terminal; and each offset value configured for the uplink subframe of the terminal corresponds to one value of the N bits one to one.
Further, the air conditioner is provided with a fan,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to send an RRC signaling or an MAC signaling with a bit value indicating that an offset value is used to the terminal, and indicate the terminal to adjust the transmission power of the designated uplink subframe by using a sum of the designated offset value and a power adjustment value indicated by an indication bit in a TPC field in a DCI format sent to the terminal.
Further, the air conditioner is provided with a fan,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an indication bit in the DCI format0/4 sent to the terminal, and instruct the terminal to adjust the transmission power of the specified uplink subframe by using a sum of an offset value corresponding to the indication bit and a power adjustment value indicated by the indication bit in the TPC field in the DCI format sent to the terminal.
Further, the air conditioner is provided with a fan,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an N-bit indication bit in a TPC field of DCI format3/3a sent to the terminal, instruct the terminal to use an offset value corresponding to the N-bit indication bit, and adjust transmission power of a specified uplink subframe in combination with the TPC field;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
Further, the air conditioner is provided with a fan,
the indication module adds 1bit in the DCI format3/3a sent to the terminal, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Further, the air conditioner is provided with a fan,
the indication module is configured to send an RRC signaling or an MAC signaling to the terminal, where 1bit in the RRC signaling or the MAC signaling is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Further, the air conditioner is provided with a fan,
the indication module adds an indication bit of N bits in a partial TPC field of DCI format3/3a transmitted to the terminal.
Further, the air conditioner is provided with a fan,
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is configured to indicate that the terminal uses an offset value of 0, and adjust the transmit power of an uplink subframe that is not interfered by a downlink subframe in combination with a TPC field in a DCI format sent to the terminal.
Further, the air conditioner is provided with a fan,
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is used for indicating the terminal to use the sum of the specified offset value and the power adjustment quantity corresponding to the TPC domain in the DCI format sent to the terminal to adjust the transmitting power of the specified uplink subframe.
Further, the air conditioner is provided with a fan,
the configuration module is further configured to divide uplink subframes of each terminal within the service range of the base station into more than one uplink subframe group;
the indication module is used for indicating the terminal to use the same assigned offset value and adjusting the assigned transmission power of the uplink subframe belonging to the same uplink subframe group by combining the TPC domain in the DCI format sent to the terminal.
After the method and the device are adopted, in a scene that a base station can flexibly configure the transmission direction of the subframe in a TDD system, the terminal can more flexibly adjust the transmitting power of the uplink signal in a closed-loop adjustment mode, enhance the anti-interference capability of the uplink signal and ensure the transmission quality of the uplink signal.
Drawings
Fig. 1 is a diagram of IoT profile in a scenario where no subframe dynamic configuration exists in the prior art;
FIG. 2 is a diagram illustrating positions of subframes that generate interference due to different macro and pico subframe configurations in the prior art;
fig. 3 is a diagram of IoT profile in a scenario with dynamic subframe configuration in the prior art;
FIG. 4 is a schematic diagram of the configuration of each pico subframe in a full pico scene according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating macro and pico subframe configurations in a macro and pico coexistence scene according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating macro and pico subframe configurations in a macro and pico coexistence scene according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the configuration of each pico subframe in a full pico scene according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base station in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In the TDD system, in a scene of subframe dynamic allocation, some subframe positions may be interfered by subframes at the same position of an adjacent cell, and along with dynamic change of a subframe transmission direction, interference strength and an interference position may also change. To solve this problem, in this embodiment, the base station configures multiple sets of closed-loop power adjustment amounts for the uplink subframes, and adjusts the transmit powers of different uplink subframes, respectively, to combat the interference on the uplink signals and ensure effective transmission of the uplink signals.
For a scenario in which some subframes in a TDD system can be flexibly scheduled, this embodiment provides a method for adjusting power, which is applied to a base station side, and includes:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein, the specified closed-loop power adjustment quantity group is one of more than 2 closed-loop power adjustment quantity groups configured by the base station for the uplink subframe of the terminal; in the 2 or more closed-loop power adjustment amount groups, each closed-loop power adjustment amount group includes one or more power adjustment values.
In a specific implementation, for each uplink subframe, the base station may instruct the terminal to adjust the transmit power of the uplink subframe corresponding to the downlink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group on the downlink subframe corresponding to the uplink subframe. For each terminal within the service range of the base station, the base station may divide the uplink subframe of the terminal into more than one uplink subframe group; thereafter, the base station may instruct the terminal to adjust the transmission power of the designated uplink subframes belonging to the same uplink subframe group using the same designated power adjustment value in the designated set of closed-loop power adjustment amounts.
Specifically, instructing the terminals within the service range to use the specified power adjustment value in the specified closed-loop power adjustment amount group can be implemented in any one of the following ways:
the first method is as follows:
the base station indicates the terminal to select a corresponding closed-loop power adjustment amount group by sending a Radio Resource Control (RRC) signaling or a Media Access Control (MAC) signaling to the terminal; the terminal is instructed to select a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group by sending a TPC (transmit power control) field in the DCI format to the terminal;
wherein, M bits are used for indicating closed loop power adjustment amount groups to a terminal in the RRC signaling or the MAC signaling, each closed loop power adjustment amount group corresponds to one value of the M bits one to one, and M is a positive integer; each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set in a one-to-one mode.
In this embodiment, in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in different closed-loop power adjustment amount groups is the same, and the power adjustment values in different closed-loop power adjustment amount groups corresponding to the same indication bit in the TPC field in the DCI format are different; or,
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in the other closed-loop power adjustment amount groups.
The second method comprises the following steps:
the base station indicates the terminal to select a corresponding closed loop power adjustment amount group by adding N bits in a DCI format sent to the terminal; through the original TPC domain in the DCI format, indicating the terminal to select the corresponding power adjustment quantity from the selected closed loop power adjustment quantity group;
the increased N bits are used for indicating closed-loop power adjustment quantity groups to the terminal, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; each value of the indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
In this embodiment, in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in different closed-loop power adjustment amount groups is the same, and the power adjustment values in different closed-loop power adjustment amount groups corresponding to the same indication bit in the TPC field in the DCI format are different; or,
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in the other closed-loop power adjustment amount groups.
The third method comprises the following steps:
the base station indicates the terminal to use the appointed power adjustment quantity in the appointed closed-loop power adjustment quantity group by sending RRC signaling or MAC signaling to the terminal and combining with a TPC domain in a DCI format sent to the terminal;
wherein, 1bit in RRC signaling or MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in the TPC domain expanded by the bit number, the expanded N bits are used for indicating closed-loop power adjustment quantity groups to a terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one, and N is a positive integer.
The method is as follows:
the base station indicates the terminal to use the appointed power adjustment quantity in the appointed closed loop power adjustment quantity group by adding 1bit in the DCI format sent to the terminal and combining a TPC domain in the DCI format;
wherein, the increased 1bit is used to indicate whether the bit number of the TPC field is expanded; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in the TPC domain expanded by the bit number, the expanded N bits are used for indicating closed-loop power adjustment quantity groups to a terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one, and N is a positive integer.
It should be noted that the increased 1bit may be located in the TPC field in the DCI format, or may be located in other fields in the DCI format.
In specific implementation, the base station may further instruct the terminal to adjust the transmit power of the uplink subframe that is not interfered by the downlink subframe by using a power adjustment value specified by an existing protocol.
Accordingly, a method for power adjustment, applied to a terminal side, includes:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment quantity group is one of more than 2 closed-loop power adjustment quantity groups configured by the service base station for the uplink subframe of the terminal; in the 2 or more closed-loop power adjustment amount groups, each closed-loop power adjustment amount group includes one or more power adjustment values.
Specifically, for each uplink subframe, the terminal receives, on a downlink subframe corresponding to the uplink subframe, an instruction sent by the serving base station to adjust the transmit power of the uplink subframe corresponding to the downlink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group for the terminal.
In addition, the uplink subframe of the terminal may be divided into more than one uplink subframe group; according to the instruction of the service base station, the terminal uses the same specified power adjustment value in a specified group of closed-loop power adjustment values to adjust the specified transmission power of the uplink subframes belonging to the same uplink subframe group.
In a specific implementation, the terminal side may use a specified power adjustment value in a specified closed-loop power adjustment amount group according to an instruction of the serving base station in any one of the following manners:
the first method is as follows:
selecting a corresponding closed loop power adjustment amount group according to RRC signaling or MAC signaling sent by a base station; selecting a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group according to the received TPC domain in the DCI format sent by the base station;
wherein, there are M bits in RRC signaling or MAC signaling to indicate the closed loop power adjustment quantity groups, each closed loop power adjustment quantity group corresponds to one value of M bits one by one, M is a positive integer; each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set in a one-to-one mode.
In this embodiment, in more than 2 closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different; or,
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in the other closed-loop power adjustment amount groups.
The second method comprises the following steps:
selecting a corresponding closed loop power adjustment quantity group according to N bits added in a DCI format sent by a service base station; selecting corresponding power adjustment quantity from the selected closed loop power adjustment quantity group according to the original TPC domain in the DCI format;
the increased N bits are used for indicating closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; each value of the indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
In this embodiment, in more than 2 closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different; or,
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in the other closed-loop power adjustment amount groups.
The third method comprises the following steps:
according to RRC signaling or MAC signaling sent by a service base station, combining a TPC domain in a received DCI format and using a specified power adjustment quantity in a specified closed-loop power adjustment quantity group;
wherein, 1bit in the RRC signaling or the MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
The method is as follows:
according to 1bit added in a DCI format sent by a service base station, combining a TPC domain in the DCI format and using a specified power adjustment quantity in a specified closed-loop power adjustment quantity group;
wherein, the increased 1bit is used to indicate whether the bit number of the TPC field is expanded; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
The increased 1bit may be located in a TPC field in the DCI format or in other fields in the DCI format.
The fifth mode is as follows:
and according to the instruction of the service base station, adjusting the transmitting power of the uplink subframe which is not interfered by the downlink subframe by using a power adjusting value specified by the existing protocol.
In this embodiment, another power adjustment method, applied to a base station side, includes:
indicating a terminal in a service range to use a specified offset value, and regulating the transmission power of a specified uplink subframe by combining a TPC (transmit power control) domain in a DCI (Downlink control information) format sent to the terminal; that is, the terminal is instructed to adjust the transmission power of the designated uplink subframe by using the sum of the designated offset value and the power adjustment amount corresponding to the TPC field in the DCI format transmitted to the terminal.
Wherein, the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal.
In specific implementation, the base station may instruct the terminal in the service range to use a specified offset value and adjust the transmission power of a specified uplink subframe by using any one of the following manners in combination with the TPC field in the DCI format sent to the terminal:
the first method is as follows:
n bits are used for indicating an offset value in a signaling sent to a terminal by a base station; and each offset value configured for the uplink subframe of the terminal corresponds to one value of the N bits one to one.
The second method comprises the following steps:
and the base station sends a bit value to the terminal to indicate RRC signaling or MAC signaling adopting an offset value, and indicates the terminal to adjust the transmitting power of the specified uplink subframe by using the sum of the specified offset value and a power adjustment value indicated by an indication bit in a TPC domain in a DCI format sent to the terminal.
The third method comprises the following steps:
the base station adds an indication bit to the DCI format0/4 sent to the terminal, and instructs the terminal to adjust the transmission power of the designated uplink subframe by using the sum of the offset value corresponding to the indication bit and the power adjustment value indicated by the indication bit in the TPC field in the DCI format sent to the terminal.
The method is as follows:
the base station adds N bits of indication bits in a TPC domain of DCI format3/3A sent to the terminal, indicates the terminal to use an offset value corresponding to the N bits of indication bits, and combines the TPC domain to adjust the transmission power of the appointed uplink subframe;
each offset value corresponds to one value of N bits one by one, and N is a positive integer; the N-bit indication bit may be added in all TPC fields in the DCI format3/3 sent by the base station to the terminal, or may be added only in some TPC fields.
In this way, the base station may add 1bit to the DCI format3/3a transmitted to the terminal, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits; or,
the base station may further send RRC signaling or MAC signaling to the terminal, where the RRC signaling or MAC signaling has 1bit to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
The fifth mode is as follows:
and indicating the terminal to use the offset value as 0, and adjusting the transmitting power of the uplink subframe which is not interfered by the downlink subframe by combining a TPC (transmit power control) domain in a DCI (Downlink control information) format sent to the terminal.
Preferably, for each terminal within the service range of the base station, the base station divides the uplink subframe of the terminal into more than one uplink subframe group;
the base station may instruct the terminal to use the same assigned offset value, and adjust the assigned transmit power of the uplink subframe belonging to the same uplink subframe group in combination with the TPC field in the DCI format sent to the terminal.
Accordingly, another power adjustment method, applied to a terminal side, includes:
according to the indication of the service base station, using the appointed deviant, and combining the TPC domain in the received DCI format, adjusting the transmitting power of the appointed uplink subframe; namely, the sum of the designated offset value and the power adjustment amount corresponding to the TPC domain in the received DCI format is used for adjusting the transmission power of the designated uplink subframe.
The designated offset value is one of more than 2 power offset values configured by the serving base station for the uplink subframe of the terminal.
In a specific implementation, an uplink subframe of a terminal may be divided into more than one uplink subframe group;
the terminal uses the same assigned offset value according to the indication of the service base station and combines the TPC domain in the received DCI format to adjust the assigned transmitting power of the uplink subframe belonging to the same uplink subframe group.
Specifically, the terminal may use the specified offset value according to the indication of the serving base station in any one of the following manners:
the first method is as follows:
n bits are used for indicating an offset value in a signaling received by a terminal and sent by a serving base station; and the service base station corresponds each deviation value configured for the uplink subframe of the terminal to one value of the N bits.
The second method comprises the following steps:
and the terminal indicates the RRC signaling or the MAC signaling adopting the offset value according to the received bit value sent by the service base station, and adjusts the transmitting power of the designated uplink subframe by using the sum of the designated offset value and the power adjustment value indicated by the indication bit in the TPC domain in the received DCI format.
The third method comprises the following steps:
the terminal adjusts the transmission power of the designated uplink subframe by using the sum of the offset value corresponding to the indication bit and the power adjustment value indicated by the indication bit in the TPC field in the received DCI format according to the indication bit added in the received DCI format0/4 sent by the serving base station.
The method is as follows:
the terminal adjusts the transmitting power of the appointed uplink subframe by using the offset value corresponding to the N-bit indication bit and combining the TPC domain according to the N-bit indication bit added in the TPC domain of the DCI format3/3A sent by the service base station;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer. In the DCI format3/3a, each TPC field is added with N bits of indication bits or only a partial TPC field is added with N bits of indication bits.
In this embodiment, 1bit is added to DCI format3/3a received by the terminal from the serving base station, where the 1bit is used to indicate whether the bit number of the TPC field in DCI format3/3a is increased by N bits; or:
and the terminal receives RRC signaling or MAC signaling sent by the serving base station, where the RRC signaling or MAC signaling has 1bit for indicating whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
The fifth mode is as follows:
according to the indication of the service base station, the terminal uses the offset value as 0, and combines the TPC domain in the received DCI format to adjust the transmitting power of the uplink subframe which is not interfered by the downlink subframe.
In order to facilitate an understanding of the invention, the invention is further illustrated below with reference to specific examples.
Example 1
In the existing release of standards, the TPC command is indicated to the UE through a TPC field in DCI format0/3/4/3 a. The specific closed-loop power adjustment amount corresponding to the value indicated in each TPC field is shown in tables 2 and 3. Configuring multiple sets of closed-loop power adjustment amounts is to change a specific closed-loop power adjustment amount corresponding to the value indicated in each TPC field in tables 2 and 3, and the mapping relationship between the value indicated in the TPC field after configuration and the closed-loop power adjustment amount is shown in tables 4 and 5 below.
TABLE 4 closed loop power adjustment corresponding to the value indicated in the TPC field in DCI format0/3/4
Table 5 closed loop power adjustment amount corresponding to value indicated in TPC field in DCI format3A
Wherein { a1, a2, A3, a 4; b1, B2, B3, B4; c1, C2 may correspond to the following sets of values: { -1, 0, 1, 3; -4, -1, 1, 4; -1, 1}, - { -2, 0, 2, 6; -8, -2, 2, 8; -2, 2}, - { -3, 0, 3, 9; -12, -4, 4, 12; -3, 3}, -16, -6, 6, 16; -6, 0, 6, 12; -4,4}. The 4 groups of values include closed-loop power adjustment amount defined in the existing standard, or certainly may not include closed-loop power adjustment amount defined in the existing standard, and the specific values of the closed-loop power adjustment amount and the number of groups of configured closed-loop power adjustment amounts may be set by the base station.
As shown in fig. 4, in a full pico scene, pico1 uses subframe configuration #0, pico2 uses subframe configuration #1, and pico3 uses subframe configuration #2, according to the difference of the interference degree of the downlink subframe on different uplink subframes, subframe 2 and subframe 7 of pico1 are divided into one group, subframe 3 and subframe 8 are divided into one group, and subframe 4 and subframe 9 are divided into one group. Thus, the uplink subframes on pico1 are divided into 3 groups. The pico1 may inform a terminal within a service range of which set of closed-loop power adjustment amount to use through RRC signaling or MAC signaling of 2 bits, or the pico1 may inform the terminal of which set of closed-loop power adjustment amount to use on each uplink subframe by adding 2 bits in the DCIformat0/4/3/3 a. For example, when the value of the 2-bit notification signaling is '00', the terminal is notified to use the closed-loop power adjustment amounts in tables 2 and 3 on subframe 2 and subframe 7. When the value of the transmitted 2-bit notification signaling for the subframe 3 and the subframe 8 is '01', it indicates that the notification terminal uses the corresponding tables of table 4 and table 5 on the subframe 3 and the subframe 8, and { a1, a2, A3, a 4; b1, B2, B3, B4; c1 and C2 are correspondingly valued as { -2, 0, 2 and 6; -8, -2, 2, 8; -2,2}. When the value of the transmitted 2-bit notification signaling for subframe 4 and subframe 9 is '10', it indicates that the notification terminal uses the tables corresponding to table 4 and table 5 on subframe 4 and subframe 9, and { a1, a2, A3, a 4; b1, B2, B3, B4; c1, C2 can take the value of-3, 0, 3, 9; -12, -4, 4, 12; -3,3}.
The uplink subframe of pico1 may also be divided into two subframe groups according to whether each uplink subframe is interfered by a downlink subframe, for example, subframe 2 and subframe 7 are divided into one group, and subframe 3, subframe 4, subframe 8 and subframe 9 are divided into one group. The pico1 may inform the terminal in the service range which set of closed-loop power adjustment is used by RRC signaling or MAC signaling with 2 bits, or the pico1 may inform the terminal which set of closed-loop power adjustment is used on each uplink subframe by adding signaling bits in the DCIformat0/4/3/3 a. Specifically, when the value of the transmitted 2-bit notification signaling for subframe 2 and subframe 7 is '00', it indicates that the terminal is notified to use the closed-loop power adjustment amounts in tables 2 and 3 on subframe 2 and subframe 7. When the value of the transmitted 2-bit notification signaling for subframe 3, subframe 4, subframe 8, and subframe 9 is '10', it indicates that the terminal is notified to use the tables corresponding to table 4 and table 5 on subframe 3, subframe 4, subframe 8, and subframe 9, and { a1, a2, A3, a 4; b1, B2, B3, B4; c1 and C2 are correspondingly valued as { -3, 0, 3 and 9; -12, -4, 4, 12; -3,3}.
The subframe 2 and the subframe 7 on the pico2 may be divided into one group, the subframe 3 and the subframe 8 may be divided into another group, and the specific method for indicating the closed-loop power adjustment amount used on each group of subframes refers to the above method for indicating the closed-loop power adjustment amount used in each subframe group in the pico1, which is not described herein again.
In another implementation, the pico1 and the pico2 may further divide the uplink subframe into a plurality of subframe groups according to whether each uplink subframe is interfered by the downlink subframe, fix the closed-loop power adjustment amount notification method adopted by the existing standard on the subframe 2 and the subframe 7, that is, indicate the TPC command through the TPC field in the DCI format0/4/3/3a, and determine the closed-loop power adjustment amount according to the tables 2 and 3. For the pico1 for the subframe 3 and the subframe 8, the subframe 4 and the subframe 9, and the pico2 for the subframe 3 and the subframe 8, 2 bits in the DCI format0/4/3/3a sent by the pico1 and the pico2 respectively are used to indicate which set of closed-loop power adjustment amount the TPC command corresponds to in the existing DCI format0/4/3/3 a. For example: when the value of 2-bit notification signaling transmitted by pico1 for subframes 3 and 8, subframes 4 and 9, and pico2 for subframes 3 and 8 is '01', it indicates that the corresponding tables of table 4 and table 5 are used on subframes 3 and 8, subframe 4 and 9 of pico1, and subframe 3 and subframe 8 of pico2, and { -2, 0, 2, 6 is selected; -8, -2, 2, 8; 2, and the specific value is which one of the set can be determined by the TPC command indicated by the TPC field in the DCI format0/4/3/3 a.
Example 2
In the existing release of standards, the TPC command is indicated to the UE through a TPC field in DCI format0/3/4/3 a. Wherein, the TPC domain in the DCI format0/3/4 has 2 bits, and the TPC domain in the DCI format3A has 1 bit. In this embodiment, the indication bits of the TPC field in the DCI format0/3/4/3a are expanded, and preferably, the TPC field in the DCI format0/3/4 is expanded from the original 2 bits to 3 bits, and the TPC field in the DCI format3A is expanded from the original 1bit to 2 bits. After spreading, for DCI format0/3/4, the TPC field has 3 bits, and the TPC field indication value is represented by ' 0 ' bit ' 000 ', 1 ' bit ' 001 ', 2 ' bit ' 010 ', 3 ' bit ' 011 ', 4 ' bit ' 100 ', 5 ' bit ' 101 ', 6 ' bit ' 110 ', and 7 ' bit ', 111 ', respectively. After spreading, for DCI format3A, the TPC field has 2 bits, and the TPC field indication value is represented by ' 0 ' using bit ' 00 ', 1 ' using bit ' 01 ', 2 ' using bit ' 10 ', and 3 ' using bit ' 11 '. The specific closed-loop power adjustment amount corresponding to the value indicated in each TPC field is shown in tables 6 and 7 below.
Closed loop power adjustment corresponding to TPC command in DCI format0/3/4 of Table 6
Closed loop power adjustment corresponding to TPC command in DCI format3A of Table 7
As shown in fig. 5, in a scene where macro and pico coexist, a subframe of macro is configured to be configuration #0, a subframe of pico1 is configured to be configuration #1, and a subframe of pico2 is configured to be configuration # 5. According to the different interference degree of the downlink subframe on the uplink subframe, the subframe 2 of macro is divided into a group, the subframe 3, the subframe 7 and the subframe 8 are divided into a group, and the subframe 4 and the subframe 9 are divided into a group. Thus, the uplink subframes on macro are divided into 3 groups. The macro may inform the terminal whether the TPC command in the TPC domain of the DCI format adopts the existing number of bits or the extended number of bits through 1-bit RRC signaling or MAC signaling, or the macro informs the terminal whether the TPC command in the TPC domain of the DCI format adopts the existing number of bits or the extended number of bits by adding 1bit in the DCI format0/4/3/3 a. Specifically, if the value of the 1-bit signaling received for a certain uplink subframe is '0', the TPC command in the TPC field of the DCI format used in the current uplink subframe is the existing bit number, and the corresponding closed-loop power adjustment amount is shown in tables 2 and 3. If the value of the 1-bit signaling received for the uplink subframe is '1', the number of bits after the TPC command of the TPC field of the DCI format used in the current uplink subframe is extended is indicated, and the corresponding closed-loop power adjustment amount is shown in tables 6 and 7. The specific value is determined by which of table 6 and table 7 is indicated by the value of the TPC command indicated by the TPC field in DCIformat0/4/3/3 a.
The uplink subframe of macro can be divided into two subframe groups according to whether each uplink subframe is interfered by a downlink subframe or not, the subframe 2 can be divided into one group, and the subframe 3, the subframe 4, the subframe 7, the subframe 8 and the subframe 9 can be divided into one group. The macro may notify the terminal in the service range of whether the TPC command in the TPC field of the DCI format uses the existing bit number or the extended bit number through 1-bit RRC signaling or MAC signaling, or the base station may notify the terminal of which set of closed-loop adjustment value is used in each uplink subframe by adding 1bit to the DCI format0/4/3/3a, and the 1bit may be carried in another TPC field, that is, the original TPC field is added by 1 bit. Specifically, if the value of the 1-bit signaling received for a certain uplink subframe is '0', the TPC command in the TPC field of the DCI format used in the uplink subframe is the existing bit number, and the corresponding closed-loop power adjustment amount is shown in tables 2 and 3. If the value of the 1-bit signaling received for a certain uplink subframe is '1', the number of bits after the TPC command indicating the TPC field of the DCI format used in the uplink subframe is extended is indicated, and the corresponding closed-loop power adjustment amount is shown in tables 6 and 7. The specific value is which one of table 6 and table 7 can be determined by the value of the TPC command indicated by the TPC field in the DCI format0/4/3/3 a. Alternatively, the TPC field indication TPC command in DCIformat0/4/3/3a is extended by 1bit based on the original bit, and then the closed loop power adjustment is indicated according to the mapping relationship in table 6 and table 7.
The subframe 2 on pico1 may be divided into one group, and the subframe 3 and the subframe 7 and the subframe 8 are divided into another group, and for a specific method for indicating the closed-loop power adjustment amount used in each group of subframes, reference is made to the above method for indicating the closed-loop power adjustment amount used in each subframe group in macro, and details are not described here.
In another implementation, macro and pico1 may also divide the uplink subframe into multiple subframe groups according to whether each uplink subframe is interfered by the downlink subframe, fix the closed-loop power adjustment notification method adopted by the existing standard on subframe 2, that is, indicate the TPC command through the TPC field in DCIformat0/4/3/3a, and determine the closed-loop power adjustment according to tables 2 and 3. And for subframe 3, subframe 7 and subframe 8, subframe 4 and subframe 9, and for subframe 3, subframe 7 and subframe 8, respectively for macro and pico1, 1bit in DCI format0/4/3/3a sent by macro and pico1 respectively is used to indicate that a TPC field in the existing DCI format0/4/3/3a indicates whether a TPC command corresponds to an existing bit number or an extended bit number. Specifically, if the value of the 1-bit signaling received for a certain uplink subframe is '0', the TPC command in the TPC field of the DCI format used in the current uplink subframe is the existing bit number, and the corresponding closed-loop power adjustment amount is shown in tables 2 and 3. If the value of the 1-bit signaling received for a certain uplink subframe is '1', it indicates that the TPC command of the TPC field of the DCI format used in the current uplink subframe is the number of bits after extension, and the corresponding closed-loop power adjustment amounts are shown in tables 6 and 7. The specific value is which one of table 6 and table 7 can be determined by the TPC field indication TPC command in DCIformat0/4/3/3 a.
Example 3
In this embodiment, by adding a plurality of TPC offset values, a new closed-loop power control value corresponding to the existing TPC command is obtained by adding the offset value indicated by the signaling to the closed-loop power control value indicated by the existing TPC command.
Preferably, if there are two new TPC offset values, a dB and B dB respectively, where a and B are both integers, signaling indicating offset requires 1bit, and bit '0' may be used to indicate AdB, and bit '1' may be used to indicate B dB. When the 1-bit signaling indicates an offset value of a dB, the values of the power adjustment amounts indicated by the TPC field in the DCI format0/3/4/3a are shown in tables 2 and 3, and the actual closed-loop power adjustment amount is the sum of the values indicated in tables 2 and 3 and the indicated offset value. If the 1bit signaling indicates that the offset value is B dB, the actually indicated closed loop power adjustment is the sum of the power adjustment indicated by the TPC field in DCI format0/3/4/3A and the offset value B dB. Or, when the value of the 1bit signaling is '0' to indicate a dB, and the power adjustment amount corresponding to the TPC command is a positive value, the actual closed-loop power adjustment amount is the sum of the value indicated by the TPC command and the offset value a dB; when the value of the 1-bit signaling is '0' indicating a dB, and the power adjustment corresponding to the TPC command is negative, the actual closed-loop power adjustment is the value indicated by the TPC command minus the offset value a dB.
Preferably, if there are four new TPC offset values, M dB, N dB, O dB and P dB respectively, where M, N, O and P are integers, the signaling indicating offset needs 2 bits, and M dB can be indicated by bit '00', N dB can be indicated by bit '01', O dB can be indicated by bit '10', and P dB can be indicated by bit '11'. When the 2-bit signaling indicates that the offset value is M dB, the actually indicated closed-loop power adjustment amount is the sum of the power adjustment amount indicated by the TPC field in DCI format0/3/4/3a and the offset value M dB. When the 2-bit signaling indicates that the offset value is N dB, the actually indicated closed-loop power adjustment amount is the sum of the power adjustment amount indicated by the TPC field in DCI format0/3/4/3a and the offset value N dB. When the 2bit signaling indicates that the offset value is O dB, the actually indicated closed loop power adjustment amount is the sum of the power adjustment amount indicated by the TPC field in DCI format0/3/4/3a and the offset value O dB. When the 2-bit signaling indicates that the offset value is P dB, the actually indicated closed-loop power adjustment amount is the sum of the power adjustment amount indicated by the TPC field in the DCI format0/3/4/3A and the offset value P dB.
As shown in fig. 6, in a scene where macro and pico coexist, the subframe of macro is configured as configuration #0, and the subframe of pico is configured as configuration # 1. According to the different interference degree of the downlink subframe on the uplink subframe, the subframe 2, the subframe 3, the subframe 7 and the subframe 8 of macro are divided into a group, and the subframe 4 and the subframe 9 are divided into a group. Thus, the uplink subframes on macro are divided into 2 groups. The macro may notify the terminal through 1-bit RRC signaling or MAC signaling whether the TPC command in the TPC field of the DCI format corresponds to the power adjustment amount shown in tables 2 and 3 or the sum of the power adjustment amount shown in tables 2 and 3 and the offset value indicated by the signaling. Or macro indicates a specific offset value by adding an indication bit in DCI format 0/4. If there is a bit indicating the offset value in DCI format0/4, the TPC command in the TPC field of the DCI format corresponds to the sum of the power adjustment amount shown in tables 2 and 3 and the offset value indicated by the bit, and if there is no bit indicating the offset value in DCI format0/4, the TPC command in the TPC field of the DCI format corresponds to the value corresponding to tables 2 and 3. Or expanding the bit number of each TPC command in the DCIformat3/3A, and adding 2 bits to each TPC command based on the indication bit of the original TPC command, where the 2 bits correspond to 4 offset values. Thus each TPC command in DCI format3/3A is increased by 2 bits based on the current number of bits. Meanwhile, 1bit is added to the DCI format3/3A to indicate whether each TPC command in the DCI format3/3A is the current bit number or the bit number after the offset indication extension is added. Alternatively, the DCI format3/3A includes the original TPC command and the TPC command with the offset value added, and each TPC command has additional physical layer signaling indicating whether the TPC command is the original TPC command or the TPC command with the offset value added. Or, when the DCI format3/3A is used to indicate the closed-loop power adjustment amount, extending a part of the TPC commands, so that each extended TPC command includes the original TPC command and the TPC command added with the offset value indication, and the remaining part of the TPC commands in the DCI format still use the existing indication bits, corresponding to the adjustment relationship in table 2 and table 3. Or, expanding the number of indicating bits of the TPC command in the DCI format0/3/4/3a, increasing 1bit on the basis of the original indicating bits, and then indicating the power adjustment amount by using the TPC command expanded in the DCI format.
Subframe 2, subframe 3, subframe 7, and subframe 8 on pico may be divided into a group, and the method for indicating the closed-loop power adjustment amount specifically used refers to the above method for indicating the closed-loop power adjustment amount used by each uplink subframe group in macro, and details are not repeated here.
In another implementation, macro and pico may also divide the uplink subframe into a plurality of subframe groups according to the difference of the interference degree of the uplink subframe by the downlink subframe, fix the closed-loop power adjustment amount notification method that has been adopted by the existing standard on subframe 2 and subframe 7, that is, indicate the TPC command through the TPC field in DCI format0/4/3/3a, and determine the closed-loop power adjustment amount according to tables 2 and 3. And for subframe 3, subframe 4, subframe 8 and subframe 9 of macro and subframe 8 of pico, and subframe 3 and subframe 8 of pico, 1bit in DCI format0/4/3/3a sent by macro and pico respectively is used to indicate that the TPC field in DCI format0/4/3/3a indicates whether the TPC command corresponds to the power adjustment amount in table 2 and table 3 or the sum of the power adjustment amount shown in table 2 and table 3 and the offset value indicated by signaling. And the 1bit can be carried in the TPC field, i.e. the original TPC field is increased by 1 bit.
Example 4
In the existing release of standards, the TPC command is indicated to the UE through the TPC field in the DCIformat0/3/4/3 a. The specific closed-loop power adjustment amount corresponding to the value indicated in each TPC field is shown in tables 2 and 3. The base station configures a group of closed loop power adjustment quantities { A1, A2, A3, A4, A5, A6, A7, A8} for the terminal through RRC signaling.
As shown in fig. 7, in a full pico scene, pico1 uses subframe configuration #0 and pico2 uses subframe configuration # 2. According to the difference of the interference degree of the downlink subframe on the uplink subframe, the subframe 2 and the subframe 7 of the pico1 are divided into a group, and the subframe 3, the subframe 4, the subframe 8 and the subframe 9 are divided into a group. Thus, the uplink subframes on pico1 are divided into 2 groups. The pico1 may notify the terminal of whether to use the corresponding power adjustment amount in table 2 and table 3 or the power adjustment amount configured by RRC signaling { a1, a2, A3, a4, a5, a6, a7, A8} through 1-bit RRC signaling or MAC signaling. Or the pico1 may notify the terminal which set of closed-loop adjustment amount is used on each uplink subframe by adding 1bit in the DCI format0/4/3/3a, and the 1bit may be carried in the TPC field, that is, the original TPC field is added by 1 bit. Specifically, when the value of the notification signaling for 1bit of subframe 2 and subframe 7 is '0', it indicates that the terminal is notified of using the closed-loop power adjustment amounts corresponding to table 2 and table 3 on subframe 2 and subframe 7, and when the value of the notification signaling for 1bit of subframe 3, subframe 4, subframe 8, and subframe 9 is '1', it indicates that the terminal is notified of using the power adjustment amounts { a1, a2, A3, a4, a5, a6, a7, A8} of RRC signaling on subframe 3, subframe 4, subframe 8, and subframe 9.
The subframe 2 and the subframe 7 on the pico2 may be divided into a group, and the method for indicating the closed-loop power adjustment amount specifically used refers to the method for indicating the closed-loop power adjustment amount used by each uplink subframe group in the pico1, which is not described herein again.
In another implementation, the pico1 and the pico2 may also divide the uplink subframe into a plurality of subframe groups according to the difference of the interference degree of the uplink subframe by the downlink subframe, fix the subframe 2 and the subframe 7, and use the closed loop power adjustment notification method already adopted by the existing standard, that is, indicate the TPC command through the TPC field in the DCI format0/4/3/3a, and determine the closed loop power adjustment according to tables 2 and 3. For subframe 3, subframe 4, subframe 8 and subframe 9, 1bit in the DCI format0/4/3/3a notified by pico1 is used to indicate which group of closed-loop power adjustment amount the TPC field in the existing DCI format0/4/3/3a indicates to which TPC command corresponds. For example, when the value of 1-bit notification signaling transmitted for subframe 3 and subframe 8 is '0', it indicates that the closed-loop power adjustment amount corresponding to table 2 and table 3 is used by the notification terminal for subframe 3 and subframe 8, and when the value of 1-bit notification signaling transmitted for subframe 4 and subframe 9 is '1', it indicates the closed-loop power adjustment amount { a1, a2, A3, a4, a5, a6, a7, A8} that the notification terminal uses RRC signaling for subframe 4 and subframe 9.
Specifically, which of { a1, a2, A3, a4, a5, a6, a7, A8} notified by the pico1 or the pico2 is power adjustment can be indicated by a TPC command. At this time, the TPC command should have 3 bits, so the TPC command in the original DCI format0/4/3/3a needs to be extended to 3 bits. In particular, when the DCI format3/3A is used to indicate the power adjustment amount, the plurality of TPC commands included in the DCI format3/3A may be different indication bit numbers. When the pico1 or pico2 notifies the terminal 1 of using the power adjustment amounts of table 2 and table 3, the corresponding TPC command is the TPC command specified by the existing format, and when the pico1 or pico2 notifies the terminal 2 of using one of the multiple sets of power adjustment amounts notified in this embodiment, the corresponding TPC command is the extended TPC command, so the number of bits indicated by the TPC commands corresponding to the terminal 1 and the terminal 2 is different, but they can be indicated by the dci format3/3A at the same time.
In particular, when the DCI format3/3A is used to indicate the power adjustment amount, the plurality of TPC commands included in the DCI format3/3A may be different indication bit numbers. When the base station informs the terminal 1 of the power adjustment amounts in table 2 and table 3, the corresponding TPC command is the TPC command specified by the existing format, and when the base station informs the terminal 2 of one of the power adjustment amounts in the present invention, the corresponding TPC command is the extended TPC command, so the number of bits indicated by the TPC commands corresponding to the terminal 1 and terminal 2 are different, but they can be indicated by DCI format3/3A at the same time.
In this embodiment, a base station, as shown in fig. 8, includes:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
and the indicating module is used for indicating the terminal in the service range to use the appointed offset value and adjusting the transmitting power of the appointed uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indicating module is configured to indicate a terminal in a service range to use a specified offset value, and specifically includes:
the indication module is used for indicating an offset value by N bits in a signaling sent to the terminal; and each offset value configured for the uplink subframe of the terminal corresponds to one value of the N bits one to one.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to send an RRC signaling or an MAC signaling with a bit value indicating that an offset value is used to the terminal, and indicate the terminal to adjust the transmission power of the designated uplink subframe by using a sum of the designated offset value and a power adjustment value indicated by an indication bit in a TPC field in a DCI format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an indication bit in the DCI format0/4 sent to the terminal, and instruct the terminal to adjust the transmission power of the specified uplink subframe by using a sum of an offset value corresponding to the indication bit and a power adjustment value indicated by the indication bit in the TPC field in the DCI format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an N-bit indication bit in a TPC field of DCI format3/3a sent to the terminal, instruct the terminal to use an offset value corresponding to the N-bit indication bit, and adjust transmission power of a specified uplink subframe in combination with the TPC field;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module adds 1bit in the DCI format3/3a sent to the terminal, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to send an RRC signaling or an MAC signaling to the terminal, where 1bit in the RRC signaling or the MAC signaling is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module adds an indication bit of N bits in a partial TPC field of DCI format3/3a transmitted to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is configured to indicate that the terminal uses an offset value of 0, and adjust the transmit power of an uplink subframe that is not interfered by a downlink subframe in combination with a TPC field in a DCI format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is used for indicating the terminal to use the sum of the specified offset value and the power adjustment quantity corresponding to the TPC domain in the DCI format sent to the terminal to adjust the transmitting power of the specified uplink subframe.
Preferably, the first and second liquid crystal films are made of a polymer,
the configuration module is further configured to divide uplink subframes of each terminal within the service range of the base station into more than one uplink subframe group;
the indication module is used for indicating the terminal to use the same assigned offset value and adjusting the assigned transmission power of the uplink subframe belonging to the same uplink subframe group by combining the TPC domain in the DCI format sent to the terminal.
Further, another base station includes:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
and the indicating module is used for indicating the terminal in the service range to use the appointed offset value and adjusting the transmitting power of the appointed uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indicating module is configured to indicate a terminal in a service range to use a specified offset value, and specifically includes:
the indication module is used for indicating an offset value by N bits in a signaling sent to the terminal; and each offset value configured for the uplink subframe of the terminal corresponds to one value of the N bits one to one.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to send an RRC signaling or an MAC signaling with a bit value indicating that an offset value is used to the terminal, and indicate the terminal to adjust the transmission power of the designated uplink subframe by using a sum of the designated offset value and a power adjustment value indicated by an indication bit in a TPC field in a DCI format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an indication bit in the DCI format0/4 sent to the terminal, and instruct the terminal to adjust the transmission power of the specified uplink subframe by using a sum of an offset value corresponding to the indication bit and a power adjustment value indicated by the indication bit in the TPC field in the DCI format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an N-bit indication bit in a TPC field of DCI format3/3a sent to the terminal, instruct the terminal to use an offset value corresponding to the N-bit indication bit, and adjust transmission power of a specified uplink subframe in combination with the TPC field;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module adds 1bit in the DCI format3/3a sent to the terminal, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module is configured to send an RRC signaling or an MAC signaling to the terminal, where 1bit in the RRC signaling or the MAC signaling is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
Preferably, the first and second liquid crystal films are made of a polymer,
the indication module adds an indication bit of N bits in a partial TPC field of DCI format3/3a transmitted to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is configured to indicate that the terminal uses an offset value of 0, and adjust the transmit power of an uplink subframe that is not interfered by a downlink subframe in combination with a TPC field in a DCI format sent to the terminal.
Preferably, the first and second liquid crystal films are made of a polymer,
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is used for indicating the terminal to use the sum of the specified offset value and the power adjustment quantity corresponding to the TPC domain in the DCI format sent to the terminal to adjust the transmitting power of the specified uplink subframe.
Preferably, the first and second liquid crystal films are made of a polymer,
the configuration module is further configured to divide uplink subframes of each terminal within the service range of the base station into more than one uplink subframe group;
the indication module is used for indicating the terminal to use the same assigned offset value and adjusting the assigned transmission power of the uplink subframe belonging to the same uplink subframe group by combining the TPC domain in the DCI format sent to the terminal.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various other embodiments may be devised in accordance with the teachings of the present invention without departing from the spirit and scope thereof, and it should be understood that various changes and modifications may be effected therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (62)
1. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to select a corresponding closed loop power adjustment amount group by sending a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling to the terminal; the terminal is instructed to select a corresponding power adjustment quantity from a selected closed loop power adjustment quantity group by sending a TPC (transmit power control) domain in a DCI (downlink control information) format to the terminal;
wherein, M bits are used for indicating closed loop power adjustment amount groups to the terminal in the RRC signaling or the MAC signaling, each closed loop power adjustment amount group corresponds to one value of the M bits one to one, and M is a positive integer; and each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set one by one.
2. The method of claim 1, wherein:
in the 2 or more closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different.
3. The method of claim 1, wherein:
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in other closed-loop power adjustment amount groups.
4. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to select a corresponding closed loop power adjustment amount group by adding N bits in a Downlink Control Information (DCI) format sent to the terminal; instructing the terminal to select a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group through an original TPC domain in the DCI format;
the increased N bits are used for indicating closed-loop power adjustment quantity groups to the terminal, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; and each value of an indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
5. The method of claim 4, wherein:
in the 2 or more closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different.
6. The method of claim 4, wherein:
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in other closed-loop power adjustment amount groups.
7. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to use the appointed power adjustment quantity in the appointed closed-loop power adjustment quantity group by sending a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling to the terminal and combining a Transmit Power Control (TPC) domain in a Downlink Control Information (DCI) format sent to the terminal;
wherein, 1bit in the RRC signaling or the MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
8. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the indicating that the terminal within the service range uses the specified power adjustment value in the specified closed-loop power adjustment value group specifically includes:
the base station indicates the terminal to use the appointed power adjustment quantity in the appointed closed loop power adjustment quantity group by adding 1bit in a downlink control information DCI format sent to the terminal and combining a TPC domain in the DCI format;
wherein the increased 1bit is used to indicate whether the bit number of the TPC field is extended; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
9. The method of claim 8, wherein:
the increased 1bit is located in a TPC field in the DCI format.
10. The method of claim 8, wherein:
the increased 1bit is located in other fields in the DCI format.
11. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the method for indicating the terminal in the service range to adjust the transmitting power of the designated uplink subframe by using the designated power adjustment value in the designated closed-loop power adjustment value group specifically comprises the following steps:
and instructing the terminal to use a power adjustment value specified by the existing protocol to adjust the transmitting power of the uplink subframe which is not interfered by the downlink subframe.
12. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the method for indicating the terminal in the service range to adjust the transmitting power of the designated uplink subframe by using the designated power adjustment value in the designated closed-loop power adjustment value group specifically comprises the following steps:
and for each uplink subframe, the base station instructs the terminal to use a specified power adjustment value in a specified closed-loop power adjustment value group on a downlink subframe corresponding to the uplink subframe to adjust the transmitting power of the uplink subframe corresponding to the downlink subframe.
13. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of a specified uplink subframe; wherein the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
for each terminal within the service range of the base station, the base station divides the uplink subframe of the terminal into more than one uplink subframe group;
and the base station instructs the terminal to use the same specified power adjustment value in a specified group of closed-loop power adjustment values to adjust the specified transmitting power of the uplink subframes belonging to the same uplink subframe group.
14. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal;
the indicating that the terminal in the service range uses the designated offset value specifically includes:
n bits are used for indicating an offset value in a signaling sent to the terminal by the base station; and each offset value configured for the uplink subframe of the terminal corresponds to one value of the N bits one to one.
15. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal;
the method for indicating the terminal in the service range to use the designated offset value and adjust the transmission power of the designated uplink subframe by combining the TPC domain in the DCI format sent to the terminal specifically comprises the following steps:
and the base station sends a radio resource control protocol (RRC) signaling or Media Access Control (MAC) signaling with a bit value representing an offset value to the terminal, and instructs the terminal to adjust the transmitting power of the designated uplink subframe by using the sum of the designated offset value and a power adjustment value represented by an indication bit in a Transmit Power Control (TPC) domain in a Downlink Control Information (DCI) format sent to the terminal.
16. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal;
the method for indicating the terminal in the service range to use the designated offset value and adjust the transmission power of the designated uplink subframe by combining the TPC domain in the DCI format sent to the terminal specifically comprises the following steps:
and the base station adds an indication bit in the DCI format0/4 sent to the terminal, and instructs the terminal to adjust the transmission power of the specified uplink subframe by using the sum of the offset value corresponding to the indication bit and the power adjustment value represented by the indication bit in the TPC domain in the DCI format sent to the terminal.
17. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal;
the method for indicating the terminal in the service range to use the designated offset value and adjust the transmission power of the designated uplink subframe by combining the TPC domain in the DCI format sent to the terminal specifically comprises the following steps:
the base station adds N-bit indication bits in a TPC domain of a DCI format3/3A sent to the terminal, indicates the terminal to use an offset value corresponding to the N-bit indication bits, and adjusts the transmission power of a specified uplink subframe by combining the TPC domain;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
18. The method of claim 17, wherein:
the base station adds 1bit in the DCI format3/3a sent to the terminal, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
19. The method of claim 17, wherein:
and the base station sends RRC signaling or MAC signaling to the terminal, wherein 1bit in the RRC signaling or MAC signaling is used for indicating whether the bit number of the TPC domain in the DCI format3/3A is increased by N bits.
20. The method of claim 17, wherein:
and the base station adds N bits of indication bits in a partial TPC domain of the DCI format3/3A transmitted to the terminal.
21. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal;
the instructing the terminal to use the designated offset value, and adjusting the transmission power of the designated uplink subframe by combining with the TPC field in the DCI format sent to the terminal, specifically includes:
and indicating the terminal to use the offset value as 0, and adjusting the transmitting power of the uplink subframe which is not interfered by the downlink subframe by combining a TPC (transmit power control) domain in a DCI (Downlink control information) format sent to the terminal.
22. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal;
instructing the terminal to use the designated offset value, and adjusting the transmission power of the designated uplink subframe by combining with the TPC field in the DCI format sent to the terminal, specifically including:
and the base station indicates the terminal to adjust the transmitting power of the appointed uplink subframe by using the sum of the appointed offset value and the power adjustment quantity corresponding to the TPC domain in the DCI format sent to the terminal.
23. A method for adjusting power is applied to a base station side and comprises the following steps:
indicating a terminal in a service range to use a specified offset value, and regulating the transmitting power of a specified uplink subframe by combining a TPC (transmit power control) domain in a Downlink Control Information (DCI) format sent to the terminal; the designated offset value is one of more than 2 power offset values configured by the base station for the uplink subframe of the terminal;
for each terminal within the service range of the base station, the base station divides the uplink subframe of the terminal into more than one uplink subframe group;
and the base station indicates the terminal to use the same assigned offset value and combines a TPC (transmit power control) domain in a DCI (Downlink control information) format sent to the terminal to adjust the assigned transmission power of the uplink subframes belonging to the same uplink subframe group.
24. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
selecting a corresponding closed loop power adjustment amount group according to a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling sent by the service base station; selecting a corresponding power adjustment quantity from a selected closed loop power adjustment quantity group according to a received TPC domain in a downlink control information DCI format sent by the service base station;
wherein, there are M bits in the RRC signaling or MAC signaling for indicating closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group corresponds to one value of the M bits one by one, and M is a positive integer; and each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set one by one.
25. The method of claim 24, wherein:
in the 2 or more closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different.
26. The method of claim 24, wherein:
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in other closed-loop power adjustment amount groups.
27. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
selecting a corresponding closed loop power adjustment amount group according to N bits added in a downlink control information DCI format sent by the service base station; selecting a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group according to the original TPC domain in the DCI format;
the increased N bits are used for indicating closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; and each value of an indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
28. The method of claim 27, wherein:
in the 2 or more closed-loop power adjustment value groups, the number of power adjustment values included in different closed-loop power adjustment value groups is the same, and the power adjustment values in different closed-loop power adjustment value groups corresponding to the same indication bit in the TPC field in the DCI format are different.
29. The method of claim 27, wherein:
in the 2 or more closed-loop power adjustment amount groups, the number of power adjustment values included in 1 or more closed-loop power adjustment amount groups is different from the number of power adjustment values included in other closed-loop power adjustment amount groups.
30. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
according to a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling sent by the serving base station, combining a Transmit Power Control (TPC) domain in a received Downlink Control Information (DCI) format and using a specified power adjustment quantity in a specified closed-loop power adjustment quantity group;
wherein, 1bit in the RRC signaling or the MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
31. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
according to 1bit added in a downlink control information DCI format sent by the service base station, combining a TPC domain in the DCI format and using a specified power adjustment quantity in a specified closed-loop power adjustment quantity group;
wherein the increased 1bit is used to indicate whether the bit number of the TPC field is extended; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
32. The method of claim 31, wherein:
the increased 1bit is located in a TPC domain in the DCI format or in other domains in the DCI format.
33. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
and adjusting the transmitting power of the uplink subframe which is not interfered by the downlink subframe by using a power adjustment value specified by the existing protocol according to the instruction of the service base station.
34. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the using of the specified power adjustment value in the specified closed-loop power adjustment amount group according to the indication of the serving base station specifically includes:
for each uplink subframe, the terminal receives, on a downlink subframe corresponding to the uplink subframe, an instruction sent by the serving base station to adjust the transmit power of the uplink subframe corresponding to the downlink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group for the terminal.
35. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the instruction of the service base station, the appointed power adjustment value in the appointed closed-loop power adjustment quantity group is used for adjusting the transmitting power of the appointed uplink subframe; wherein, the specified closed-loop power adjustment amount group is one of more than 2 closed-loop power adjustment amount groups configured by the serving base station for the uplink subframe of the terminal; in the more than 2 closed-loop power adjustment quantity groups, each closed-loop power adjustment quantity group comprises more than one power adjustment value;
the uplink subframe of the terminal is divided into more than one uplink subframe group;
and according to the indication of the service base station, the terminal uses the same specified power adjustment value in a specified group of closed-loop power adjustment quantities to adjust the specified transmitting power of the uplink subframe belonging to the same uplink subframe group.
36. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the indication of the service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received DCI (downlink control information) format to adjust the transmission power of a specified uplink subframe;
wherein, the designated offset value is one of more than 2 power offset values configured for the uplink subframe of the terminal by the serving base station;
the using the specified offset value according to the indication of the serving base station specifically includes:
n bits are used for indicating an offset value in a signaling received by the terminal and sent by the serving base station; and the service base station corresponds each deviation value configured for the uplink subframe of the terminal to one value of the N bits.
37. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the indication of the service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received DCI (downlink control information) format to adjust the transmission power of a specified uplink subframe;
wherein, the designated offset value is one of more than 2 power offset values configured for the uplink subframe of the terminal by the serving base station;
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and the terminal indicates radio resource control protocol RRC signaling or media access control MAC signaling adopting an offset value according to the received bit value sent by the service base station, and adjusts the transmitting power of the designated uplink subframe by using the sum of the designated offset value and the power adjustment value indicated by the indication bit in the TPC domain in the received DCI format.
38. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the indication of the service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received DCI (downlink control information) format to adjust the transmission power of a specified uplink subframe;
wherein, the designated offset value is one of more than 2 power offset values configured for the uplink subframe of the terminal by the serving base station;
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and the terminal adjusts the transmission power of the specified uplink subframe by using the sum of the offset value corresponding to the indication bit and the power adjustment value represented by the indication bit in the TPC domain in the received DCI format according to the received indication bit added in the DCI format0/4 sent by the serving base station.
39. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the indication of the service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received DCI (downlink control information) format to adjust the transmission power of a specified uplink subframe;
wherein, the designated offset value is one of more than 2 power offset values configured for the uplink subframe of the terminal by the serving base station;
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
the terminal adjusts the transmission power of the appointed uplink subframe by using the offset value corresponding to the N-bit indication bit and combining the TPC domain according to the N-bit indication bit added in the TPC domain of the DCI format3/3A sent by the service base station;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
40. The method of claim 39, wherein:
adding 1bit to the DCI format3/3a received by the terminal from the serving base station, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
41. The method of claim 39, wherein:
and the terminal receives RRC signaling or MAC signaling sent by the serving base station, where 1bit in the RRC signaling or MAC signaling is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
42. The method of claim 39, wherein:
and adding N bits of indication bits into a partial TPC field of the DCI format3/3A received by the terminal from the serving base station.
43. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the indication of the service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received DCI (downlink control information) format to adjust the transmission power of a specified uplink subframe;
wherein, the designated offset value is one of more than 2 power offset values configured for the uplink subframe of the terminal by the serving base station;
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and according to the indication of the service base station, the terminal uses the offset value as 0 and combines the TPC domain in the received DCI format to adjust the transmitting power of the uplink subframe which is not interfered by the downlink subframe.
44. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the indication of the service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received DCI (downlink control information) format to adjust the transmission power of a specified uplink subframe;
wherein, the designated offset value is one of more than 2 power offset values configured for the uplink subframe of the terminal by the serving base station;
the adjusting, according to the indication of the serving base station, the transmission power of the designated uplink subframe by using the designated offset value in combination with the TPC field in the received DCI format specifically includes:
and the terminal adjusts the transmitting power of the appointed uplink subframe by using the sum of the appointed offset value and the power adjustment quantity corresponding to the TPC domain in the received DCI format according to the indication of the service base station.
45. A method for power adjustment is applied to a terminal side and comprises the following steps:
according to the indication of the service base station, using a specified offset value and combining a TPC (transmit power control) domain in a received DCI (downlink control information) format to adjust the transmission power of a specified uplink subframe;
wherein, the designated offset value is one of more than 2 power offset values configured for the uplink subframe of the terminal by the serving base station;
the uplink subframe of the terminal is divided into more than one uplink subframe group;
and the terminal uses the same assigned offset value according to the indication of the service base station and combines the TPC domain in the received DCI format to adjust the assigned transmission power of the uplink subframe belonging to the same uplink subframe group.
46. A base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
an indication module, configured to indicate a terminal in a service range to adjust transmission power of a specified uplink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group;
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indicating module is used for indicating the terminal to select a corresponding closed loop power adjustment amount group by sending a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling to the terminal; the terminal is instructed to select a corresponding power adjustment quantity from a selected closed loop power adjustment quantity group by sending a TPC (transmit power control) domain in a DCI (downlink control information) format to the terminal;
wherein, M bits are used for indicating closed loop power adjustment amount groups to the terminal in the RRC signaling or the MAC signaling, each closed loop power adjustment amount group corresponds to one value of the M bits one to one, and M is a positive integer; and each value of the indication bit in the TPC domain corresponds to each power adjustment quantity in the closed-loop power adjustment quantity set one by one.
47. A base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
an indication module, configured to indicate a terminal in a service range to adjust transmission power of a specified uplink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group;
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indication module is used for indicating the terminal to select a corresponding closed loop power adjustment amount group by adding N bits in a downlink control information DCI format sent to the terminal; instructing the terminal to select a corresponding power adjustment quantity from the selected closed loop power adjustment quantity group through an original TPC domain in the DCI format;
the increased N bits are used for indicating closed-loop power adjustment quantity groups to the terminal, each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one, and N is a positive integer; and each value of an indication bit in the original TPC domain in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one by one.
48. A base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
an indication module, configured to indicate a terminal in a service range to adjust transmission power of a specified uplink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group;
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indication module is used for indicating the terminal to use the appointed power adjustment quantity in the appointed closed-loop power adjustment quantity group by sending a radio resource control protocol (RRC) signaling or a Media Access Control (MAC) signaling to the terminal and combining a Transmit Power Control (TPC) domain in a Downlink Control Information (DCI) format sent to the terminal;
wherein, 1bit in the RRC signaling or the MAC signaling is used for indicating whether the bit number of the TPC domain is expanded or not; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
49. A base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
an indication module, configured to indicate a terminal in a service range to adjust transmission power of a specified uplink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group;
the indicating module is configured to indicate a terminal in a service range to use a specified power adjustment value in a specified closed-loop power adjustment amount group, and specifically includes:
the indication module is configured to indicate, by adding 1bit to a downlink control information DCI format sent to the terminal and combining a TPC field in the DCI format, that the terminal uses a specified power adjustment amount in a specified closed-loop power adjustment amount group;
wherein the increased 1bit is used to indicate whether the bit number of the TPC field is extended; the value of the TPC domain which is not subjected to bit number expansion is used for indicating the power adjustment quantity corresponding to the value of the TPC domain specified by the existing protocol to the terminal; in a TPC domain expanded by bit number, N expanded bits are used for indicating closed-loop power adjustment quantity groups to the terminal, and each closed-loop power adjustment quantity group corresponds to one value of the N bits one by one; and each bit value indicated by the original TPC field in the DCI format corresponds to each power adjustment quantity in the closed-loop power adjustment quantity group one to one, and N is a positive integer.
50. A base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
an indication module, configured to indicate a terminal in a service range to adjust transmission power of a specified uplink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group;
the indicating module is configured to instruct a terminal within a service range to adjust the transmission power of a designated uplink subframe by using a designated power adjustment value in a designated closed-loop power adjustment amount group, and specifically includes:
the indication module is used for indicating the terminal to use a power adjustment value specified by the existing protocol to adjust the transmitting power of the uplink subframe which is not interfered by the downlink subframe.
51. A base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
an indication module, configured to indicate a terminal in a service range to adjust transmission power of a specified uplink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group;
the indicating module is configured to instruct a terminal within a service range to adjust the transmission power of a designated uplink subframe by using a designated power adjustment value in a designated closed-loop power adjustment amount group, and specifically includes:
the indicating module is used for indicating the terminal to use a specified power adjustment value in a specified closed-loop power adjustment value group to adjust the transmitting power of the uplink subframe corresponding to the downlink subframe on the downlink subframe corresponding to each uplink subframe.
52. A base station, comprising:
a configuration module, configured to configure more than 2 closed-loop power adjustment amount groups for uplink subframes of a terminal within a service range; wherein, in the more than 2 closed loop power adjustment quantity groups, each closed loop power adjustment quantity group comprises more than one power adjustment value;
an indication module, configured to indicate a terminal in a service range to adjust transmission power of a specified uplink subframe by using a specified power adjustment value in a specified closed-loop power adjustment amount group;
the configuration module is further configured to divide uplink subframes of each terminal within the service range of the base station into more than one uplink subframe group;
the indicating module is used for indicating the terminal to use the same specified power adjustment value in the specified closed loop power adjustment quantity group to adjust the specified transmitting power of the uplink subframe belonging to the same uplink subframe group.
53. A base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
an indication module, configured to indicate a terminal in a service range to use a specified offset value, and adjust transmission power of a specified uplink subframe in combination with a TPC field in a DCI format of downlink control information sent to the terminal;
the indicating module is configured to indicate a terminal in a service range to use a specified offset value, and specifically includes:
the indication module is used for indicating an offset value by N bits in a signaling sent to the terminal; and each offset value configured for the uplink subframe of the terminal corresponds to one value of the N bits one to one.
54. A base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
an indication module, configured to indicate a terminal in a service range to use a specified offset value, and adjust transmission power of a specified uplink subframe in combination with a TPC field in a DCI format of downlink control information sent to the terminal;
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is used for sending a radio resource control protocol RRC signaling or a media access control MAC signaling of which the bit value represents an offset value to the terminal, and indicating the terminal to use the sum of the specified offset value and a power adjustment value represented by an indication bit in a TPC domain in a DCI format sent to the terminal to adjust the transmitting power of the specified uplink subframe.
55. A base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
an indication module, configured to indicate a terminal in a service range to use a specified offset value, and adjust transmission power of a specified uplink subframe in combination with a TPC field in a DCI format of downlink control information sent to the terminal;
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an indication bit in the DCI format0/4 sent to the terminal, and instruct the terminal to adjust the transmission power of the specified uplink subframe by using a sum of an offset value corresponding to the indication bit and a power adjustment value indicated by the indication bit in the TPC field in the DCI format sent to the terminal.
56. A base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
an indication module, configured to indicate a terminal in a service range to use a specified offset value, and adjust transmission power of a specified uplink subframe in combination with a TPC field in a DCI format of downlink control information sent to the terminal;
the indication module is configured to indicate a terminal in a service range to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, and specifically includes:
the indication module is configured to add an N-bit indication bit in a TPC field of DCI format3/3a sent to the terminal, instruct the terminal to use an offset value corresponding to the N-bit indication bit, and adjust transmission power of a specified uplink subframe in combination with the TPC field;
each offset value corresponds to one value of the N bits one by one, and N is a positive integer.
57. The base station of claim 56, wherein:
the indication module adds 1bit in the DCI format3/3a sent to the terminal, where the 1bit is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
58. The base station of claim 56, wherein:
the indication module is configured to send an RRC signaling or an MAC signaling to the terminal, where 1bit in the RRC signaling or the MAC signaling is used to indicate whether the bit number of the TPC field in the DCI format3/3a is increased by N bits.
59. The base station of claim 56, wherein:
the indication module adds an indication bit of N bits in a partial TPC field of DCI format3/3a transmitted to the terminal.
60. A base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
an indication module, configured to indicate a terminal in a service range to use a specified offset value, and adjust transmission power of a specified uplink subframe in combination with a TPC field in a DCI format of downlink control information sent to the terminal;
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is configured to indicate that the terminal uses an offset value of 0, and adjust the transmit power of an uplink subframe that is not interfered by a downlink subframe in combination with a TPC field in a DCI format sent to the terminal.
61. A base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
an indication module, configured to indicate a terminal in a service range to use a specified offset value, and adjust transmission power of a specified uplink subframe in combination with a TPC field in a DCI format of downlink control information sent to the terminal;
the indicating module is configured to indicate the terminal to use a specified offset value, and adjust the transmission power of a specified uplink subframe in combination with a TPC field in a DCI format sent to the terminal, where the method specifically includes:
the indication module is used for indicating the terminal to use the sum of the specified offset value and the power adjustment quantity corresponding to the TPC domain in the DCI format sent to the terminal to adjust the transmitting power of the specified uplink subframe.
62. A base station, comprising:
the configuration module is used for configuring more than 2 power deviation values for the uplink subframe of the terminal in the service range;
an indication module, configured to indicate a terminal in a service range to use a specified offset value, and adjust transmission power of a specified uplink subframe in combination with a TPC field in a DCI format of downlink control information sent to the terminal;
the configuration module is further configured to divide uplink subframes of each terminal within the service range of the base station into more than one uplink subframe group;
the indication module is used for indicating the terminal to use the same assigned offset value and adjusting the assigned transmission power of the uplink subframe belonging to the same uplink subframe group by combining the TPC domain in the DCI format sent to the terminal.
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CN201310073137.5A CN104039000B (en) | 2013-03-07 | 2013-03-07 | A kind of method of power adjustment and base station |
PCT/CN2013/090496 WO2014134955A1 (en) | 2013-03-07 | 2013-12-26 | Power adjustment method and base station |
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CN108134659B (en) * | 2017-08-11 | 2021-01-15 | 中兴通讯股份有限公司 | Parameter configuration method, power determination method, device and communication node |
WO2019070178A1 (en) | 2017-10-02 | 2019-04-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Tpc command indication for multiple closed loops |
CN108135028B (en) * | 2018-02-27 | 2022-08-19 | 中兴通讯股份有限公司 | Power control method, device and communication node |
CN111132295B (en) * | 2018-04-13 | 2021-03-09 | Oppo广东移动通信有限公司 | Uplink power control method, terminal equipment and network equipment |
CN115811779A (en) * | 2021-09-14 | 2023-03-17 | 华为技术有限公司 | Uplink power indication method and device |
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WO2011040858A1 (en) * | 2009-10-02 | 2011-04-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Uplink power control in a wireless communication system |
CN102368868A (en) * | 2011-09-15 | 2012-03-07 | 新邮通信设备有限公司 | Method for optimizing physical uplink control channel power control |
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CN1512800A (en) * | 2002-12-30 | 2004-07-14 | �ʼҷ����ֵ��ӹɷ�����˾ | Self adaption step-size power control system and method for radio communication system |
JP5461688B2 (en) * | 2009-04-24 | 2014-04-02 | アルカテル−ルーセント | Method and apparatus for power control and interference coordination |
US9763197B2 (en) * | 2009-10-05 | 2017-09-12 | Qualcomm Incorporated | Component carrier power control in multi-carrier wireless network |
US8965442B2 (en) * | 2010-05-07 | 2015-02-24 | Qualcomm Incorporated | Uplink power control in aggregated carrier communication systems |
CN102938930B (en) * | 2011-08-16 | 2015-07-08 | 华为技术有限公司 | Compensation method of coordinated multi-point (CoMP) system upstream power control, base station and user equipment (UE) |
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WO2011040858A1 (en) * | 2009-10-02 | 2011-04-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Uplink power control in a wireless communication system |
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