CN101742626B - Power regulating method, power regulating system, base station and user equipment - Google Patents
Power regulating method, power regulating system, base station and user equipment Download PDFInfo
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Abstract
The embodiment of the invention relates to a power regulating method, a power regulating system, a base station and user equipment, wherein the power regulating method comprises the following steps: scrambling the downlink control information carrying transmission power control command words by using radio network temporary identity (RNTI) corresponding to different scheduling modes; sending the scrambled downlink control information to the user equipment; and indicating the user equipment to use the transmission power control command words carried in the downlink control information to regulate the power corresponding to the different scheduling modes. The user equipment of the embodiment of the invention enables the power regulating range to be proper by respectively regulating the power corresponding to the different scheduling modes independently, and the IBLER is low.
Description
Technical field
The embodiment of the present invention relates to communication technical field, particularly a kind of power regulating method and system, base station and subscriber equipment.
Background technology
Long Term Evolution (Long Term Evolution; Be called for short: LTE) in the system, the purpose of introducing uplink power control is the stand-by time that extends terminal, reduces the interference between UE.Defined subscriber equipment (User Equipment in 36.213 agreements for this reason; Be called for short: UE) side is determined Physical Uplink Shared Channel (Physical Uplink Shared Channel; Be called for short: the PUSCH) mode of transmitting power, following formula (1):
P
PUSCH(i)＝min{P
CMAX，10log
10(M
PUSCH(i))+P
O_PUSCH(j)+α(j)·PL+Δ
TF(i)+f(i)} (1)
In formula (1), M
PUSCH(i) i subframe of expression distributed to the PUSCH bandwidth of UE; P
O_PUSCH(j) expression cell-level PUSCH target power and UE level power bias and, at different scheduling modes for example: semi-persistent scheduling (Semi-Persistent Scheduling; Be called for short: SPS), dynamic dispatching (DynamicalScheduling; Be called for short: DS), Random Access Channel (Random Access Channel; Be called for short: difference value when RACH) accessing; α (j) is the power back-off factor, difference value when SPS, DS, RACH access; PL is path loss (Pass Lost; Be called for short: PL); Δ
TFDuring (i) for PUSCH carrying channel associated signalling on the impact of power; F (i) is power adjustment skew, controls (Transmitter powercontrol with through-put power; Be called for short: TPC) command word is relevant.
According to present agreement, scheduling mode not simultaneously, the parameter P of formula (1)
O_PUSCH(j) value with α (j) is different, and other parameter is identical.Wherein, parameter M
PUSCH(i), Δ
TF(i) value and scheduling mode are irrelevant.Power is adjusted the value of offset parameter f (i), present agreement is not distinguished scheduling mode yet, and UE receives Downlink Control Information (Downlink Control Information; Be called for short: DCI) 0, according to identical mode, the value of parameter f (i) is adjusted after the TPC of DCI 3/3A.Although the power reference to semi-persistent scheduling and dynamic dispatching is distinguished, semi-persistent scheduling and dynamic dispatching machine-processed different, semi-persistent scheduling is owing to keeping for a long time Resource Block (Resource Block; Be called for short: RB) resource, Modulation and Coding Scheme (Modulation and Coding Schema; Be called for short: MCS) constant, may adopt a relatively conservative MCS when initial; And dynamic dispatching can be according to current Signal to Interference plus Noise Ratio (Signal toInterference plus Noise Ratio; Be called for short: SINR) get a proper MCS and dispatch.
The inventor finds prior art at least in realizing process of the present invention there are the following problems at least:
When carrying out power control, may cause the power control adjustment under semi-persistent scheduling and dynamic dispatching to influence each other, it is excessive that emergent power is controlled adjusting range, may exceed the scope that agreement allows, and just pass Block Error Rate (Initial Block Error Rate; Be called for short: IBLER) height.
Summary of the invention
The embodiment of the present invention provides a kind of power regulating method and system, base station and subscriber equipment, control to adjust in order to the power that solves different scheduling modes in existing power control process and influence each other, cause power to control adjusting range large, the problems such as IBLER height, the power control adjustment that realizes different scheduling modes is relatively independent, it is suitable that power is controlled adjusting range, reduces IBLER.
The embodiment of the present invention provides a kind of power regulating method, comprising:
Adopt the Radio Network Temporary Identifier corresponding from different scheduling modes, the Downlink Control Information that carries the transmission power control command word is carried out scrambling;
Send described Downlink Control Information after scrambling to subscriber equipment, indicate described subscriber equipment with the described transmission power control command word that carries in described Downlink Control Information for adjusting power corresponding to different scheduling modes.
The embodiment of the present invention provides again a kind of power regulating method, comprising:
Receive the Downlink Control Information that carries the transmission power control command word that the base station sends, described Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes;
The described transmission power control command word that carries in described Downlink Control Information is used for adjusting power corresponding to different scheduling modes.
The embodiment of the present invention provides a kind of base station again, comprising:
Scrambling module is used for adopting the Radio Network Temporary Identifier corresponding from different scheduling modes, and the Downlink Control Information that carries the transmission power control command word is carried out scrambling;
The first sending module for the described Downlink Control Information after subscriber equipment transmission scrambling, indicates described subscriber equipment that the described transmission power control command word that carries in described Downlink Control Information is used for adjusting power corresponding to described different scheduling mode.
The embodiment of the present invention also provides a kind of subscriber equipment, comprising:
The second receiver module is used for receiving the Downlink Control Information that carries the transmission power control command word that the base station sends, and described Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes;
Power regulation module, the described transmission power control command word that is used for described Downlink Control Information is carried is used for adjusting power corresponding to different scheduling modes.
The embodiment of the present invention also provides a kind of power adjustment system, comprising:
Above-mentioned base station and subscriber equipment.
The power regulating method that the embodiment of the present invention provides and system, base station and subscriber equipment, the Radio Network Temporary Identifier corresponding from different scheduling modes adopted in the base station, after the Downlink Control Information that carries the transmission power control command word is carried out scrambling, send the Downlink Control Information comprise after scrambling to subscriber equipment, equipment for indicating user can be distinguished different scheduling modes according to Radio Network Temporary Identifier, thereby can independently carry out respectively the power adjustment to different scheduling modes, so that the scope that power control is adjusted is suitable, IBLER is low.
Description of drawings
Fig. 1 is the schematic diagram that in the embodiment of the present invention, semi-persistent scheduling and dynamic dispatching power are controlled adjustment trend;
Fig. 2 is the flow chart of power regulating method the first embodiment of the present invention;
Fig. 3 is the flow chart of power regulating method the second embodiment of the present invention;
Fig. 4 is the flow chart of power regulating method the 3rd embodiment of the present invention;
Fig. 5 is the structural representation of base station the first embodiment of the present invention;
Fig. 6 is the structural representation of base station the second embodiment of the present invention;
Fig. 7 is the structural representation of subscriber equipment the first embodiment of the present invention;
Fig. 8 is the structural representation of subscriber equipment the second embodiment of the present invention;
Fig. 9 is the structural representation of power adjustment system embodiment of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the schematic diagram that in the embodiment of the present invention, semi-persistent scheduling and dynamic dispatching power are controlled adjustment trend, and as shown in Figure 1, the cycle of supposing semi-persistent scheduling is 6 TTI, if there is no semi-persistent scheduling, and evolution base station (evolved Node Base; Be called for short: the power of the TPC order indication that eNB) issues is controlled adjusting range and can be expressed as TPC (1), TPC (3), TPC (5), TPC (7), TPC (9), TPC (11), and this scope can not surpass the represented scope in agreement.if introducing semi-persistent scheduling, power is controlled to adjust and can be passed through DCI 0, DCI 3/3A completes, at this moment, before and after semi-persistent scheduling, the power of TPC order indication is controlled adjusting range can be expressed as TPC (4), TPC (5 '), TPC (10), TPC (11 '), can find out: if do not distinguish the power adjustment skew of dynamic adjustment and static adjust, after once adjust and need to carry out on the front basis of once adjusting, to cause the amplitude (as the TPC (11 ') in Fig. 1) adjusted excessive, may surpass the scope that allows, thereby can't satisfy the original intention of dynamic dispatching and semi-persistent scheduling rapid adjustment power.Can distinguish the power adjustment skew of dynamic adjustment and static adjust in the embodiment of the present invention, specific embodiment is as follows.
Fig. 2 is the flow chart of power regulating method the first embodiment of the present invention, and as shown in Figure 2, this power regulating method comprises the following steps:
The Downlink Control Information that base station (eNB) sends to subscriber equipment (UE) can be for the Downlink Control Information of carrying uplink scheduling information such as DCI 0 etc., can be also for the Downlink Control Information of carrying transmission power control command word such as DCI 3/3A etc.
In communication network, downlink physical control channel (PDCCH) is used for the Downlink Control Information (DCI) that carrying eNB issues UE, and PDCCH is a shared channel, and all UE can listen to.Therefore the mechanism of differentiation need to be arranged, make UE know which DCI issues this UE.Downlink Control Information (DCI) is carried on the PDCCH channel, and multiple format is arranged, and for example: DCI 0 is used for the carrying uplink scheduling information; DCI1/1A/1B/1C/1D/2/2A is used for the bearing downlink schedule information; DCI 3/3A is exclusively used in the carrying through-put power and controls (TPC) command word, the open command word that can once carry a plurality of UE.
The DCI of eNB to each transmission uses different RNTI to carry out scrambling to DCI, for example: first DCI is carried out CRC (Cyclical Redundancy Check; Be called for short: CRC), obtain check results, then RNTI and check results are carried out XOR.UE uses known RNTI to carry out descrambling to the DCI that receives, if descrambling success (CRC check success), UE thinks that this DCI issues self, and carries out subsequent treatment.Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network TemporaryIdentifier; Be called for short: C-RNTI) be used at a specific UE of residential quarter sign, each UE that accesses the residential quarter has a unique C-RNTI.C-RNTI can carry out scrambling to DCI 0/1～2A, can indicate dynamic dispatching.Semi-static Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (SPS C-RNTI) is the RNTI that is used to indicate semi-persistent scheduling, and the UE that carries out semi-persistent scheduling services in the residential quarter has a unique SPS C-RNTI.SPS C-RNTI can carry out scrambling to DCI 0/1～2A.
If the Downlink Control Information that the base station sends to subscriber equipment is the Downlink Control Information of carrying uplink scheduling information, for example: DCI 0, and step 101 can be taked following selection:
If selection one needs to adjust the power corresponding to semi-persistent scheduling of described subscriber equipment, adopt semi-static Cell Radio Network Temporary Identifier/Identity, Cell-RNTI corresponding to described semi-persistent scheduling, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling;
If selection two needs to adjust the power corresponding to dynamic dispatching of described subscriber equipment, adopt Cell Radio Network Temporary Identifier/Identity, Cell-RNTI corresponding to described dynamic dispatching, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling.
If the Downlink Control Information that the base station sends to subscriber equipment is the Downlink Control Information for carrying transmission power control command word, for example: DCI 3/3A before the base station sends Downlink Control Information to subscriber equipment, comprises the following steps:
Send Radio Resource to subscriber equipment and control Radio Resource control (Radio Resource Control; Be called for short: RRC) message, this radio resource control information comprises the Radio Network Temporary Identifier that different scheduling modes are corresponding;
Receive replying of radio resource control information success that described subscriber equipment returns.
In addition, need to set in advance Radio Network Temporary Identifier corresponding to different scheduling modes (RadioNetwork Temporary Identity; Be called for short: RNTI).Particularly, if described scheduling mode is semi-persistent scheduling, the Radio Network Temporary Identifier that described semi-persistent scheduling is corresponding is set to the first Radio Network Temporary Identifier; If described scheduling mode is dynamic dispatching, Radio Network Temporary Identifier corresponding to described dynamic dispatching is set to the second wireless network temporary mark.
When the base station sends DCI 3/3A to subscriber equipment, owing to not being used to indicate the RNTI of TPC command word in DCI 3/3A, can definition of T PC-PUSCH-RNTI-SPS be the first Radio Network Temporary Identifier corresponding to semi-persistent scheduling, TPC-PUSCH-RNTI-DS is second wireless network temporary mark corresponding to dynamic dispatching, be carried in DCI3/3A, send to UE.Therefore, step 101 can be taked following selection:
If selection three needs to adjust the power corresponding to semi-persistent scheduling of described subscriber equipment, adopt the first Radio Network Temporary Identifier corresponding to described semi-persistent scheduling, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling;
If selection four needs to adjust the power corresponding to dynamic dispatching of described subscriber equipment, adopt second wireless network temporary mark corresponding to described dynamic dispatching, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling.
The Radio Network Temporary Identifier corresponding from different scheduling modes adopted in the present embodiment base station, after the Downlink Control Information that carries the transmission power control command word is carried out scrambling, send the Downlink Control Information comprise after scrambling to subscriber equipment, equipment for indicating user can be distinguished different scheduling modes according to Radio Network Temporary Identifier, thereby can independently carry out respectively the power adjustment to different scheduling modes, the scope that power is adjusted is suitable, and IBLER is low.
Fig. 3 is the flow chart of power regulating method the second embodiment of the present invention, and as shown in Figure 3, this power regulating method comprises the following steps:
The Downlink Control Information that carries the transmission power control command word of step 201, reception base station transmission, described Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes;
The Downlink Control Information that subscriber equipment receives the base station transmission can be for the Downlink Control Information that carries uplink scheduling information, can be also the Downlink Control Information for carrying transmission power control command word.Be for the Downlink Control Information of carrying transmission power control command word if receive the Downlink Control Information of base station transmission, also comprised before step 201:
Receive the radio resource control information that the base station sends, described radio resource control information comprises the Radio Network Temporary Identifier corresponding from different scheduling modes;
Returning to replying of radio resource control information success to described base station.
UE receives the radio resource control information that eNB sends, for example: after (RRCConnection Reconfiguration) message is reshuffled in the RRC connection, can return to the RRC connection to eNB and reshuffle successfully (RRC Connection Reconfiguration Complete) message.Wherein, RRC message also can be set up the message such as message or reconstruction message for RRC, only describe as an example of RRC connection reconfiguration message example in the present embodiment.
In step 202, the scheduling mode that UE determines according to Radio Network Temporary Identifier carries out the power adjustment and specifically can be divided into following several situation:
Situation one, according to semi-static Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, described Downlink Control Information is carried out descrambling, if descrambling success, described scheduling mode is semi-persistent scheduling, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described semi-persistent scheduling;
Situation two, according to Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, described Downlink Control Information is carried out descrambling, if descrambling success, described scheduling mode is dynamic dispatching, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described dynamic dispatching;
In situation one and situation two, Downlink Control Information can be DCI 0.
Situation three, according to the first Radio Network Temporary Identifier, described Downlink Control Information is carried out descrambling, if descrambling success, described scheduling mode is semi-persistent scheduling, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described semi-persistent scheduling;
Situation four, according to the second wireless network temporary mark, described Downlink Control Information is carried out descrambling, if descrambling success, described scheduling mode is dynamic dispatching, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described dynamic dispatching.
In situation three and situation four, Downlink Control Information can be DCI3/3A.
The present embodiment subscriber equipment receives the Downlink Control Information that carries the transmission power control command word that the base station sends, wherein Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes, subscriber equipment can be distinguished different scheduling modes according to Radio Network Temporary Identifier, thereby different scheduling modes is independently carried out respectively the power adjustment, the scope that power is adjusted is suitable, and IBLER is low.
Fig. 4 is the flow chart of power regulating method the 3rd embodiment of the present invention, as shown in Figure 4, on the basis of first, second embodiment of power regulating method of the present invention, as wireless resource control connection reconfiguration message as example, this power regulating method comprises the following steps take radio resource control information:
Step 301, base station (eNB) send wireless resource control connection reconfiguration (RRC Connection Reconfiguration) message to subscriber equipment (UE), and RRC Connection Reconfiguration message comprises the RNTI that different scheduling modes are corresponding.The RNTI field of supposing semi-persistent scheduling is by name: TPC-PUSCH-RNTI-SPS, the RNTI field of dynamic dispatching is by name: TPC-PUSCH-RNTI-DS.According to the concrete condition of the scheduling mode of current business, can only carry TPC-PUSCH-RNTI-SPS in RRC Connection Reconfiguration message, perhaps TPC-PUSCH-RNTI-DS, perhaps two RNTI carry.If currently have a plurality of mixed services, adopted the scheduling mode that mixes, eNB can notify UE with two RNTI by RRC Connect ion Reconfigurat ion Complete message; If current exists single business, only have a kind of scheduling mode, only need a RNTI notice UE.
Exemplarily, the RNTI that in RRC Connection Reconfiguration message, different scheduling modes are corresponding can realize by the expansion to " TPC-PDCCH-Config " field in 3GPP TS 36.331.For example: other parameter constants of " TPC-PDCCH-Config " field, increase parameter " tpc-PDCCH-ConfigPUSCH-SPS " and parameter " tpc-PDCCH-ConfigPUSCH-DS ", wherein parameter " tpc-PDCCH-ConfigPUSCH-SPS " is indicated semi-persistent scheduling, parameter " tpc-PDCCH-ConfigPUSCH-DS " indication dynamic dispatching, expand being defined as follows of rear " TPC-PDCCH-Config " field:
ASN1START
PhysicalConfigDedicated::＝ SEQUENCE{
pdsch-ConfigDedicated PDSCH-ConfigDedicated OPTIONAL，
-Need ON
pucch-ConfigDedicated PUCCH-ConfigDedicated OPTIONAL，
-Need ON
pusch-Conf igDedicated PUSCH-ConfigDedicated OPTIONAL，
-Need ON
uplinkPowerControlDedicated UplinkPowerControlDedicated OPTIONAL，
-Need ON
tpc-PDCCH-ConfigPUCCH TPC-PDCCH-Config OPTIONAL，
-Need ON
tpc-PDCCH-Conf igPUSCH-SPS TPC-PDCCH-Config OPTIONAL，
-Need ON
tpc-PDCCH-ConfigPUSCG-DS TPC-PDCCH-Config OPTIONAL，
-Need ON
cqi-ReportConfig CQI-ReportConfig OPTIONAL，
-Need ON
soundingRS-UL-ConfigDedicated SoundingRS-UL-ConfigDedicated OPTIONAL，
-Need ON
antennaInfo CHOICE{
explici tValue AntennaInfoDedicated，
defaultValue NULL
} OPTIONAL， -Need ON
schedulingRequestConfig Schedul ingRequestConfig OPTIONAL，
-Need ON
}
-ASN1STOP
Step 302, UE send wireless resource control connection reconfiguration success (RRC ConnectionReconfiguration Complete) message to eNB, inform that the eNB success has received RRC ConnectionReconfiguration message.
Step 303, eNB issue different TPC command words according to scheduling mode by DCI 0 or DCI 3/3A, wherein adopt RNTI to carry out scrambling to DCI 0 or the DCI 3/3A of carrying TPC command word.Different scheduling modes, different to the RNTI of DCI 0 or DCI 3/3A scrambling employing: for DCI 0, semi-persistent scheduling adopts C-RNTI to carry out scrambling, and dynamic dispatching adopts SPS C-RNTI to carry out scrambling; For DCI 3/3A, semi-persistent scheduling adopts TPC-PUSCH-RNTI-SPS to carry out scrambling, and dynamic dispatching adopts TPC-PUSCH-RNT I-DS to carry out scrambling.
Step 304, UE carry out descrambling according to RNTI to DCI 0/3/3A, different power adjustment skew f (i) is adjusted, then can determine transmitting power on Physical Uplink Shared Channel (PUSCH) according to above-mentioned formula (1), wherein the definite method to power adjustment skew f (i) is as follows:
If UE receives DCI 0, UE determines according to the content of DCI 0 indicating which kind of scheduling mode is the TPC command word be used for.For example: when DCI 0 adopted the C-RNTI scrambling, the scheduling mode of indication was dynamic dispatching, and the TPC command word in DCI 0 can be used as in f (i) the substitution formula (1) of dynamic dispatching determines transmitting power; When DCI 0 adopted SPS C-RNTI scrambling, the activation of indication semi-persistent scheduling/releases, TPC order this moment can not used or only for semi-persistent scheduling.In general, the base station can not send to a subscriber equipment DCI 0 that adopts the C-RNTI scrambling simultaneously, sends again the DCI 0 that adopts SPS C-RNTI scrambling.
If UE receives DCI 3/3A, UE determines according to the RNTI of the scrambling in DCI 3/3A which kind of scheduling mode is the TPC command word be used for, for example: when RNTI is TPC-PUSCH-RNTI-SPS, be semi-persistent scheduling, when RNTI is TPC-PUSCH-RNTI-DS, be dynamic dispatching.The base station can send to a subscriber equipment DCI 3/3A that adopts the TPC-PUSCH-RNTI-SPS scrambling simultaneously, and the DCI 3/3A that adopts the TPC-PUSCH-RNTI-DS scrambling.
In addition, when sending the power control of DCI 0 and DCI 3/3A indication same scheduling mode to subscriber equipment simultaneously in the base station, can preferentially use the TPC command word in DCI 0; When DCI 0 and DCI 3/3A indication be different scheduling mode the time, separately TPC command word is applied to respectively different f (i).
The present embodiment eNB sends the RRC ConnectionReconfi uration message that comprises the RNTI that different scheduling modes are corresponding to UE, can distinguish different scheduling modes according to RNTI, adopt RNTI to carry out scrambling to DCI, the scheduling mode that subscriber equipment is can be according to the DCI that differentiation receives corresponding, thereby the TPC in DCI is carried out the power adjustment as the power adjustment skew of different scheduling modes, the scope that makes power adjust is suitable, and IBLER is low.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be completed by the hardware that program command is correlated with, aforesaid program can be stored in a computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 5 is the structural representation of base station the first embodiment of the present invention, and as shown in Figure 5, this base station comprises: scrambling module 51 and the first sending module 50.
Wherein, scrambling module 51 is used for adopting the Radio Network Temporary Identifier corresponding from different scheduling modes, and the Downlink Control Information that carries the transmission power control command word is carried out scrambling;
The first sending module 50 for the described Downlink Control Information after subscriber equipment transmission scrambling, indicates described subscriber equipment that the described transmission power control command word that carries in described Downlink Control Information is used for adjusting power corresponding to described different scheduling mode.
Further, if the base station send to be used for Downlink Control Information from carrying transmission power control command word to subscriber equipment such as: DCI 3/3A etc. can also comprise: the second sending module 52 and the first receiver module 53.
The second sending module 52 is used for sending radio resource control information to subscriber equipment, and described radio resource control information comprises the Radio Network Temporary Identifier that different scheduling modes are corresponding;
The first receiver module 53 is used for receiving replying of radio resource control information success that described subscriber equipment returns.
Particularly, the second sending module 52 sends radio resource control information to UE, and the Radio Network Temporary Identifier that the scheduling mode of current business is corresponding (RNTI) is informed UE; After UE received radio resource control information, the first receiver module 53 can receive replying of radio resource control information success that UE returns; Then, the Downlink Control Information (DCI) that scrambling module 51 adopts with RNTI corresponding to different scheduling modes controls (TPC) command word to carrying through-put power carries out scrambling, the DCI of the first sending module 50 after employing RNTI scrambling corresponding to UE transmission scheduling mode.DCI for example DCI 0 or DCI 3/3A transmission TPC command word can be adopted in the base station.After UE receives DCI, can carry out descrambling to DCI according to RNTI, and according to different scheduling modes, power adjustment skew be adjusted.Specifically can be with reference to the associated description in power regulating method first of the present invention, the 3rd embodiment.
The first sending module of the present embodiment base station sends the DCI that adopts RNTI scrambling corresponding to different scheduling modes to subscriber equipment, make subscriber equipment can distinguish different scheduling modes according to RNTI, thereby the TPC command word is independently carried out respectively the power adjustment to being applied to different scheduling modes, the scope that power is adjusted is suitable, can reduce IBLER.
Fig. 6 is the structural representation of base station the second embodiment of the present invention, and as shown in Figure 6, on the basis of base station the first embodiment of the present invention, this base station also comprises: presetting module 54 is used for setting in advance Radio Network Temporary Identifier corresponding to different scheduling modes; If described scheduling mode is semi-persistent scheduling, the described Radio Network Temporary Identifier that described semi-persistent scheduling is corresponding is set to the first Radio Network Temporary Identifier; If described scheduling mode is dynamic dispatching, described Radio Network Temporary Identifier corresponding to described dynamic dispatching is set to the second wireless network temporary mark.
Further, scrambling module 51 comprises with any one of lower module or multinomial:
The first semi-static scrambling submodule 511, if be used for needing to adjust the power corresponding to semi-persistent scheduling of described subscriber equipment, adopt semi-static Cell Radio Network Temporary Identifier/Identity, Cell-RNTI corresponding to described semi-persistent scheduling, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling;
The first dynamic scrambling submodule 512, if be used for needing to adjust the power corresponding to dynamic dispatching of described subscriber equipment, adopt Cell Radio Network Temporary Identifier/Identity, Cell-RNTI corresponding to described dynamic dispatching, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling;
The second semi-static scrambling submodule 513, if be used for needing to adjust the power corresponding to semi-persistent scheduling of described subscriber equipment, adopt the first Radio Network Temporary Identifier corresponding to described semi-persistent scheduling, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling;
The second dynamic scrambling submodule 514, if be used for needing to adjust the power corresponding to dynamic dispatching of described subscriber equipment, adopt second wireless network temporary mark corresponding to described dynamic dispatching, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling.
Particularly, for the DCI that is used for the carrying ascending control information for example: DCI 0, if need to adjust the power corresponding to semi-persistent scheduling of subscriber equipment, the Downlink Control Information that is used for the carrying uplink scheduling information that the first semi-static scrambling submodule 511 sends to UE is for example: DCI0, adopt SPS C-RNTI scrambling in DCI0; If perhaps need to adjust the power corresponding to dynamic dispatching of subscriber equipment, the first dynamic scrambling submodule 512 sends the Downlink Control Information DCI0 that is used for the carrying uplink scheduling information to UE, adopts the C-RNTI scrambling in DCI0.For the DCI that is exclusively used in carrying TPC command word, for example: DCI 3/3A, after presetting module 54 sets in advance Radio Network Temporary Identifier corresponding to different scheduling modes, the second sending module 52 sends radio resource control information to UE, and the Radio Network Temporary Identifier that the scheduling mode of current business is corresponding (RNTI) is informed UE; After UE received radio resource control information, the first receiver module 53 can receive replying of radio resource control information success that UE returns; Then, scrambling module 51 will adopt RNTI to carry out scrambling to the DCI of carrying TPC command word, and the first sending module 50 sends DCI after scrambling corresponding to scheduling mode to UE.If the scheduling mode of current business is semi-persistent scheduling, the Downlink Control Information of the carrying transmission power control command word that the second semi-static scrambling submodule 513 sends to UE for example: DCI3/3A, adopt the TPC-PUSCH-RNTI-SPS scrambling in DCI3/3A; If perhaps need to adjust the power corresponding to dynamic dispatching of subscriber equipment, the second dynamic scrambling submodule 514 sends to UE the Downlink Control Information DCI3/3A that carrying is used for the transmission power control command word of dynamic dispatching, adopts the TPC-PUSCH-RNTI-DS scrambling in DCI3/3A.After UE receives DCI, can carry out descrambling to DCI by the Radio Network Temporary Identifier corresponding according to different scheduling modes, and according to different scheduling modes, power adjustment skew be adjusted.Specifically can be with reference to the associated description in power regulating method first of the present invention, the 3rd embodiment.
Each submodule of the first sending module of the present embodiment base station sends the DCI that adopts RNTI scrambling corresponding to different scheduling modes to subscriber equipment, subscriber equipment can be distinguished different scheduling modes according to RNTI, thereby according to the TPC command word, different scheduling modes is independently carried out respectively the power adjustment, the scope that power is adjusted is suitable, can reduce IBLER.
Fig. 7 is the structural representation of subscriber equipment the first embodiment of the present invention, and as shown in Figure 7, this subscriber equipment comprises: the second receiver module 71 and power regulation module 72.
Wherein, the second receiver module 71 is used for receiving the Downlink Control Information that carries the transmission power control command word that the base station sends, and described Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes;
Particularly, after the second receiver module 71 of subscriber equipment receives the Downlink Control Information of base station transmission, the Radio Network Temporary Identifier descrambling that 72 pairs of these Downlink Control Information of power regulation module carry out scrambling, scheduling mode can be determined, and the transmission power control command word in Downlink Control Information power corresponding to different scheduling modes can be used for adjusting.Specifically can be with reference to the associated description in second, third embodiment of power regulating method of the present invention.
The second receiver module of the present embodiment subscriber equipment receives the Downlink Control Information that carries the transmission power control command word that the base station sends, wherein, this Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes, power regulation module can be distinguished different scheduling modes according to Radio Network Temporary Identifier, to the transmission power control command word in Downlink Control Information according to adjusting power corresponding to different scheduling modes, thereby the scope that power is adjusted is suitable, reduces IBLER.
Fig. 8 is the structural representation of subscriber equipment the second embodiment of the present invention, and as shown in Figure 8, on the basis of subscriber equipment the first embodiment of the present invention, this subscriber equipment also comprises: the 3rd receiver module 73 and return to module 74.
Wherein, the 3rd receiver module 73 is used for receiving the radio resource control information that the base station sends, and described radio resource control information comprises the Radio Network Temporary Identifier corresponding from different scheduling modes;
Return to module 74, be used for returning to replying of radio resource control information success to described base station.
Further, power regulation module 72 comprises any one of following submodule or multinomial:
The first semi-static adjustment submodule 721, be used for according to semi-static Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, described Downlink Control Information being carried out descrambling, if descrambling success, described scheduling mode is semi-persistent scheduling, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described semi-persistent scheduling;
First dynamically adjusts submodule 722, be used for according to Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, described Downlink Control Information being carried out descrambling, if descrambling success, described scheduling mode is dynamic dispatching, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described dynamic dispatching;
The second semi-static adjustment submodule 723, be used for according to the first Radio Network Temporary Identifier, described Downlink Control Information being carried out descrambling, if descrambling success, described scheduling mode is semi-persistent scheduling, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described semi-persistent scheduling;
Second dynamically adjusts submodule 724, be used for according to the second wireless network temporary mark, described Downlink Control Information being carried out descrambling, if descrambling success, described scheduling mode is dynamic dispatching, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described dynamic dispatching.
Particularly, if Downlink Control Information is used for the carrying uplink scheduling information, the first semi-static adjustment submodule 721 can be corresponding according to semi-persistent scheduling semi-static Cell Radio Network Temporary Identifier/Identity, Cell-RNTI this Downlink Control Information is carried out descrambling success, the transmission power control command word with this Downlink Control Information carrying is used for adjusting power corresponding to semi-persistent scheduling, and namely the power adjustment is carried out in corresponding power adjustment skew as semi-persistent scheduling; If first dynamically adjust submodule 722 according to carrying out the descrambling success to Downlink Control Information by Cell Radio Network Temporary Identifier/Identity, Cell-RNTI corresponding to dynamic dispatching, the transmission power control command word with the Downlink Control Information carrying is used for adjusting power corresponding to dynamic dispatching, namely carries out the power adjustment as power adjustment skew corresponding to dynamic dispatching.
If Downlink Control Information is used for carrying transmission power control command word, after the 3rd receiver module 73 receives the radio resource control information of base station transmission, return to module 74 and return to replying of radio resource control information success to the base station, the Downlink Control Information of the Radio Network Temporary Identifier scrambling that then the different scheduling modes of employing of the second receiver module 71 reception base station transmissions are corresponding.If the first Radio Network Temporary Identifier that the second semi-static adjustment submodule 723 can be corresponding according to semi-persistent scheduling is to the success of Downlink Control Information descrambling, the transmission power control command word with this Downlink Control Information carrying is used for adjusting power corresponding to semi-persistent scheduling, and namely the power adjustment is carried out in corresponding power adjustment skew as semi-persistent scheduling; If the second second wireless network temporary mark that dynamically adjustment submodule 724 can be corresponding according to dynamic dispatching is to this Downlink Control Information descrambling success, the transmission power control command word with this Downlink Control Information carrying is used for adjusting power corresponding to dynamic dispatching, namely carries out the power adjustment as power adjustment skew corresponding to dynamic dispatching.Specifically can be with reference to the associated description in second, third embodiment of power regulating method of the present invention.
After the second receiver module of the present embodiment subscriber equipment receives the DCI that carries the TPC command word after RNTI scrambling corresponding to different scheduling modes of employing that the base station sends; Each submodule of power regulation module, according to RNTI, Downlink Control Information is carried out descrambling, determine scheduling mode, and independently according to scheduling mode, being offset as the power adjustment of the TPC command word in Downlink Control Information carried out the power adjustment respectively, can make power control the scope of adjusting suitable, IBLER is low.
Fig. 9 is the structural representation of power adjustment system embodiment of the present invention, and as shown in Figure 9, this power adjustment system comprises:
The base station 91 of any one structure and subscriber equipment 92 in above-described embodiment;
Particularly, base station 91 sends to subscriber equipment 92 Downlink Control Information that carries the transmission power control command word, and this Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes; After 92 pairs of Downlink Control Information of subscriber equipment carry out descrambling, can determine scheduling mode, and the transmission power control command word that carries in Downlink Control Information is used for adjusting power corresponding to different scheduling modes, for example: with the power adjustment skew of transmission power control command word as different scheduling modes.
The present embodiment base station sends to subscriber equipment and comprises the DCI that adopts the carrying TPC command word after RNTI scrambling corresponding to different scheduling modes, subscriber equipment can independently carry out respectively the power adjustment to different scheduling modes, the scope that power is adjusted is suitable, and IBLER is low.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (13)
1. a power regulating method, is characterized in that, comprising:
Adopt the Radio Network Temporary Identifier corresponding from different scheduling modes, the Downlink Control Information that carries the transmission power control command word is carried out scrambling;
Send described Downlink Control Information after scrambling to subscriber equipment, indicate described subscriber equipment with the described transmission power control command word that carries in described Downlink Control Information for adjusting power corresponding to different scheduling modes;
Described method also comprises: set in advance Radio Network Temporary Identifier corresponding to different scheduling modes;
If described scheduling mode is semi-persistent scheduling, the described Radio Network Temporary Identifier that described semi-persistent scheduling is corresponding is set to the first Radio Network Temporary Identifier;
If described scheduling mode is dynamic dispatching, described Radio Network Temporary Identifier corresponding to described dynamic dispatching is set to the second wireless network temporary mark.
2. power regulating method according to claim 1, is characterized in that, the Radio Network Temporary Identifier that described employing is corresponding from different scheduling modes before the Downlink Control Information that carries the transmission power control command word is carried out scrambling, comprising:
Send radio resource control information to subscriber equipment, described radio resource control information comprises the Radio Network Temporary Identifier that different scheduling modes are corresponding;
Receive replying of radio resource control information success that described subscriber equipment returns.
3. power regulating method according to claim 1 and 2, is characterized in that, the Radio Network Temporary Identifier that described employing is corresponding from different scheduling modes carries out scrambling to the Downlink Control Information that carries the transmission power control command word, comprising:
If need to adjust the power corresponding to semi-persistent scheduling of described subscriber equipment, adopt the first Radio Network Temporary Identifier corresponding to described semi-persistent scheduling, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling; Or
If need to adjust the power corresponding to dynamic dispatching of described subscriber equipment, adopt second wireless network temporary mark corresponding to described dynamic dispatching, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling.
4. a power regulating method, is characterized in that, comprising:
Receive the Downlink Control Information that carries the transmission power control command word that the base station sends, described Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes;
The described transmission power control command word that carries in described Downlink Control Information is used for adjusting power corresponding to different scheduling modes;
Wherein, set in advance Radio Network Temporary Identifier corresponding to different scheduling modes in described base station; If described scheduling mode is semi-persistent scheduling, the described Radio Network Temporary Identifier that described semi-persistent scheduling is corresponding is set to the first Radio Network Temporary Identifier;
If described scheduling mode is dynamic dispatching, described Radio Network Temporary Identifier corresponding to described dynamic dispatching is set to the second wireless network temporary mark.
5. power regulating method according to claim 4, is characterized in that, before the Downlink Control Information that carries the transmission power control command word of described reception base station transmission, comprising:
Receive the radio resource control information that the base station sends, described radio resource control information comprises the Radio Network Temporary Identifier corresponding from different scheduling modes;
Return to replying of radio resource control information success to described base station.
6. according to claim 4 or 5 described power regulating methods, is characterized in that, described the described transmission power control command word that carries in described Downlink Control Information is used for adjusting power corresponding to different scheduling modes, comprising:
According to the first Radio Network Temporary Identifier, described Downlink Control Information is carried out descrambling, if descrambling success, described scheduling mode is semi-persistent scheduling, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described semi-persistent scheduling; Or
According to the second wireless network temporary mark, described Downlink Control Information is carried out descrambling, if descrambling success, described scheduling mode is dynamic dispatching, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described dynamic dispatching.
7. a base station, is characterized in that, comprising:
Scrambling module is used for adopting the Radio Network Temporary Identifier corresponding from different scheduling modes, and the Downlink Control Information that carries the transmission power control command word is carried out scrambling;
The first sending module for the described Downlink Control Information after subscriber equipment transmission scrambling, indicates described subscriber equipment that the described transmission power control command word that carries in described Downlink Control Information is used for adjusting power corresponding to described different scheduling mode;
Described base station also comprises: presetting module is used for setting in advance Radio Network Temporary Identifier corresponding to different scheduling modes; If described scheduling mode is semi-persistent scheduling, the described Radio Network Temporary Identifier that described semi-persistent scheduling is corresponding is set to the first Radio Network Temporary Identifier; If described scheduling mode is dynamic dispatching, described Radio Network Temporary Identifier corresponding to described dynamic dispatching is set to the second wireless network temporary mark.
8. base station according to claim 7, is characterized in that, also comprises:
The second sending module is used for sending radio resource control information to subscriber equipment, and described radio resource control information comprises the Radio Network Temporary Identifier that different scheduling modes are corresponding;
The first receiver module is used for receiving replying of radio resource control information success that described subscriber equipment returns.
9. according to claim 7 or 8 described base stations, is characterized in that, described scrambling module comprises with any one of lower module or multinomial:
The second semi-static scrambling submodule, if be used for needing to adjust the power corresponding to semi-persistent scheduling of described subscriber equipment, adopt the first Radio Network Temporary Identifier corresponding to described semi-persistent scheduling, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling;
The second dynamic scrambling submodule, if be used for needing to adjust the power corresponding to dynamic dispatching of described subscriber equipment, adopt second wireless network temporary mark corresponding to described dynamic dispatching, the described Downlink Control Information that carries the transmission power control command word is carried out scrambling.
10. a subscriber equipment, is characterized in that, comprising:
The second receiver module is used for receiving the Downlink Control Information that carries the transmission power control command word that the base station sends, and described Downlink Control Information adopts the Radio Network Temporary Identifier scrambling corresponding from different scheduling modes;
Power regulation module, the described transmission power control command word that is used for described Downlink Control Information is carried is used for adjusting power corresponding to different scheduling modes;
Wherein, set in advance Radio Network Temporary Identifier corresponding to different scheduling modes in described base station; If described scheduling mode is semi-persistent scheduling, the described Radio Network Temporary Identifier that described semi-persistent scheduling is corresponding is set to the first Radio Network Temporary Identifier;
If described scheduling mode is dynamic dispatching, described Radio Network Temporary Identifier corresponding to described dynamic dispatching is set to the second wireless network temporary mark.
11. subscriber equipment according to claim 10 is characterized in that, also comprises:
The 3rd receiver module is used for receiving the radio resource control information that the base station sends, and described radio resource control information comprises the Radio Network Temporary Identifier corresponding from different scheduling modes;
Return to module, be used for returning to replying of radio resource control information success to described base station.
12. according to claim 10 or 11 described subscriber equipmenies is characterized in that, described power regulation module comprises any one of following submodule or multinomial:
The second semi-static adjustment submodule, be used for according to the first Radio Network Temporary Identifier, described Downlink Control Information being carried out descrambling, if descrambling success, described scheduling mode is semi-persistent scheduling, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described semi-persistent scheduling;
Second dynamically adjusts submodule, be used for according to the second wireless network temporary mark, described Downlink Control Information being carried out descrambling, if descrambling success, described scheduling mode is dynamic dispatching, and the transmission power control command word that described Downlink Control Information is carried is used for adjusting power corresponding to described dynamic dispatching.
13. a power adjustment system is characterized in that, comprising:
Described base station as arbitrary in claim 7-9;
As claim 10,11 or 12 described subscriber equipmenies.
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