WO2015042843A1 - 上行信息发送方法及装置、接收方法及装置、通信系统 - Google Patents
上行信息发送方法及装置、接收方法及装置、通信系统 Download PDFInfo
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- WO2015042843A1 WO2015042843A1 PCT/CN2013/084365 CN2013084365W WO2015042843A1 WO 2015042843 A1 WO2015042843 A1 WO 2015042843A1 CN 2013084365 W CN2013084365 W CN 2013084365W WO 2015042843 A1 WO2015042843 A1 WO 2015042843A1
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- uplink
- ratio
- tdd
- dci
- downlink
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- 238000000034 method Methods 0.000 title claims abstract description 95
- 238000004891 communication Methods 0.000 title claims abstract description 16
- 230000011664 signaling Effects 0.000 claims abstract description 59
- 101150096310 SIB1 gene Proteins 0.000 claims description 14
- 230000006870 function Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 7
- 230000004913 activation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2612—Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method and device for transmitting uplink information, a receiving method and device, and a communication system.
- LTE Long Term Evolution
- TDD Time Division Duplexing
- uplink U-book plink, UL
- downlink Downlink
- DL downlink
- the LTE TDD system can be configured with the Uplink-Downlink Configuration in a semi-static configuration to meet different uplink and downlink asymmetric service requirements.
- These uplink and downlink ratios are carried in the LTE TDD R12 version.
- the User Information UE is notified in the System Information Block 1, SIB1 message.
- SIB1 System Information Block 1 message.
- the TDD uplink and downlink ratio can be dynamically changed. For example, the TDD uplink and downlink ratio is changed from 10ms to 40ms. This function is called eIMTA.
- the existing LTE TDD system has seven ratios. For details, see Table 1 below, where D stands for downlink, U stands for uplink, S stands for special subframe, and special subframe includes Downlink Pilot Time Slot. DWPTS), Guard Period (GP) and Uplink Pilot Time Slot (UPPTS). Instruction manual
- the uplink grant (UL GRANT)
- the DCI (Downlink Control Information Format) format O/4 is the domain of the uplink index number (UL Index). It is two bits and represents the scheduled subframe.
- the PUSCH subframe scheduled by the GRANT is n+k, and the k value is as shown in Table 2.
- the PUSCH subframe scheduled by the UL GRANT is n+7.
- both bits of the UL Index are set to 1
- two DC subframes can be simultaneously adjusted in one DCI of one downlink subframe, thereby saving the overhead of downlink control signaling.
- the domain name of the DCI format O/4 of the uplink grant is DAS (Downlink Assignment Index), which is also two bits.
- the DAI indicates the PDSCH and the downlink SPS release signal transmitted in the HARQ-ACK bundle subframe set.
- the total number of orders, and the HARQ-ACK information carried on the PUSCH scheduled by the UL GRANT, the bit is determined according to the value of the DAI carried by the UL GRANT. For example, the larger the value of the DAI, the HARQ-ACK information fed back on the PUSCH. The more bits, the more resources on the PUSCH occupied by the HARQ-ACK information.
- judging whether the UL INDEX or DAI domain exists is based on the TDD ratio notified in SIB1, and the TDD ratio notified in SIB1 is mainly for the UE before LTE TDD R12.
- the technical problem to be solved by the present invention is to provide an uplink information transmission method and apparatus, a receiving method and a device, and a communication system, so as to solve the problem that the TDD uplink-downlink ratio delivered by the SIB does not match the actual ratio, resulting in UL.
- the function of the Index field or the DAI domain does not function, resulting in an increase in the overhead of downlink control signaling or uplink control signaling.
- an uplink information sending method including:
- the TDD uplink-downlink ratio includes a ratio or an uplink reference ratio in a physical downlink control channel PDCCH;
- the base station Transmitting the uplink information corresponding to the DCI to the base station in an uplink subframe corresponding to the determined UL Index field according to the determined UL Index field; or according to the determining the existing DAI domain,
- the base station transmits HARQ-ACK information corresponding to the DAI domain that is determined to exist.
- the determining, according to the TDD uplink and downlink ratio, that the U-book L Index field or the DAI domain exists in the DCI includes: When the ratio is any one of TDD ratios 0, 3, and 6, it is determined that there is a UL Indexi ⁇ in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL index domain or the DAI domain in the DCI specifically includes: the ratio in the PDCCH is When any one of the TDD ratios 1, 2, 4, and 5 is used, it is determined that the DAI domain exists in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI specifically includes: the uplink reference ratio is TDD. When the ratio is 0, it is determined that there is a UL Index field in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI specifically includes: the uplink reference ratio is TDD.
- the uplink reference ratio is TDD.
- the TDD uplink and downlink ratio sent by the receiving base station specifically includes:
- a bearer transmitted in a radio resource control RRC signaling or a system information block The uplink reference ratio in SIB 1 signaling.
- the method further includes: receiving a downlink reference ratio sent by the base station;
- the HARQ-ACK information corresponding to the maximum value of the number of subframes to be fed back corresponding to the downlink reference ratio is sent to the base station in the uplink subframe corresponding to the determined UL Index field.
- the method further includes: when the uplink reference ratio is a TDD ratio of 0, determining that the uplink subframe corresponding to the DCI is a UL index when the TDD ratio is 0.
- the LSB of the field is set to 1, it corresponds to the uplink subframe of the book.
- the determining, according to the uplink and downlink ratio of the TDD, determining that the UL index domain or the DAI domain exists in the DCI further includes:
- a UL Index domain or a DAI domain exists in the DCI according to the TDD uplink-downlink ratio after the entry.
- an uplink information receiving method including:
- the TDD uplink and downlink ratio includes a ratio or an uplink reference ratio in the PDCCH;
- Determining the presence of the UL index domain or the DAI domain in the DCI specifically includes: when the ratio in the PDCCH is any one of TDD ratios 0, 3, and 6, determining that the DCI exists in the DCI. UL Indexig!.
- the determining, by the base station, that the UL index domain or the DAI domain exists in the DCI according to the uplink and downlink ratio of the TDD specifically: the ratio in the PDCCH is TDD.
- the UE determines that a DAI domain exists in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI specifically includes: the uplink reference ratio is When the TDD ratio is 0, it is determined that there is a UL Index field in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI specifically includes: the uplink reference ratio is TDD.
- the uplink reference ratio is TDD.
- the sending the TDD uplink-downlink ratio to the UE specifically includes:
- the method further includes: sending a downlink reference ratio to the UE;
- determining the DCI There is a DAI domain in it, which also includes:
- the uplink subframe corresponding to the DCI is determined to be an uplink subframe corresponding to the LSB of the UL index when the TDD ratio is 0.
- the determining, by the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI further includes:
- the presence of the UL Index domain or the DAI domain in the DCI includes:
- a UL Index domain or a DAI domain exists in the DCI according to the TDD uplink and downlink book ratio after the effective time.
- an uplink information sending apparatus including:
- a first receiving module configured to receive a DCI and a TDD uplink and downlink ratio sent by the base station
- a first determining module configured to be connected to the first receiving module, configured to determine, according to the TDD uplink-downlink ratio, that a UL Index domain or a DAI domain exists in the DCI; where the TDD uplink-downlink ratio includes a PDCCH Ratio or upstream reference ratio;
- the first sending module is connected to the first determining module, and configured to send, according to the determined UL Index domain or the DAI domain, the DCI corresponding to the uplink subframe corresponding to the determined UL Index domain.
- Uplink information is sent to the base station; or according to the determined DAI domain, the HARQ-ACK information corresponding to the determined DAI domain is sent to the base station.
- the first determining module is specifically configured to: when the ratio in the PDCCH is any one of TDD ratios 0, 3, and 6 There is a UL Index field in the DCI.
- the first determining module is specifically configured to: when the ratio in the PDCCH is any one of TDD ratios 1, 2, 4, and 5 , Determining the presence of a DAI domain in the DCI.
- the first determining module is specifically configured to: when the uplink reference ratio is a TDD ratio of 0, determine that the UL Indexig! exists in the DCI.
- the first determining module is specifically configured to: the uplink reference ratio is any one of TDD ratios 1, 2, 3, 4, 5, and 6 In one case, it is determined that a DAI domain exists in the DCI.
- the first receiving module is further configured to: receive, by the book, the uplink reference ratio that is sent by the base station and is carried in RC signaling or SIB1 signaling .
- the first receiving module is further configured to receive a downlink reference ratio sent by the base station;
- the first sending module is further configured to: use the HARQ-ACK information corresponding to the maximum value of the number of subframes that need to be fed back corresponding to the downlink reference ratio in the uplink subframe corresponding to the determined UL index domain. Is sent to the base station.
- the method further includes: a first subframe determining module, configured to determine, when the uplink reference ratio is a TDD ratio of 0, an uplink subframe corresponding to the DCI The uplink subframe corresponding to the LSB of the UL Index field when the TDD ratio is 0 is set to 1.
- the first determining module is further configured to: determine an effective time of the TDD uplink and downlink ratio sent by the base station; according to the TDD after the effective The uplink and downlink ratio determines that there is a UL Index domain or a DAI domain in the DCI.
- an uplink information receiving apparatus including:
- a second sending module configured to send DCI and TDD uplink-downlink ratio to the UE;
- a second determining module configured to be connected to the second sending module, configured to determine, according to the TDD uplink-downlink ratio, that a UL index domain or a DAI domain exists in the DCI; where the TDD uplink-downlink ratio includes a PDCCH Ratio or upstream reference ratio;
- the second receiving module is configured to be connected to the second determining module, configured to receive uplink information corresponding to the DCI sent by the UE, in an uplink subframe corresponding to the determined UL Index field, or according to the determining
- the existing DAI domain receives the HARQ-ACK information that is sent by the UE and is corresponding to the DAI domain that is determined to exist.
- the second determining module is specifically configured to: when the ratio in the PDCCH is any one of the book TDD ratios 0, 3, and 6, It is determined that a UL Index domain exists in the DCI.
- the second determining module is specifically configured to: when the ratio in the PDCCH is any one of TDD ratios 1, 2, 4, and 5 The UE determines that a DAI domain exists in the DCI.
- the second determining module is specifically configured to: when the uplink reference ratio is a TDD ratio of 0, determine that the UL Index i ⁇ exists in the DCI.
- the second determining module is specifically configured to: the uplink reference ratio is any one of TDD ratios 1, 2, 3, 4, 5, and 6 In one case, it is determined that a DAI domain exists in the DCI.
- the second sending module is further configured to send the uplink reference ratio to the base station by using RRC signaling or SIB1 signaling.
- the second sending module is further configured to: send a downlink reference ratio to the UE;
- the second receiving module is further configured to: in the uplink sub-corresponding to the determined UL index domain
- the frame receives the HARQ-ACK information corresponding to the maximum value of the number of subframes to be fed back corresponding to the downlink reference ratio sent by the UE.
- the method further includes: a second subframe determining module, configured to determine, when the uplink reference ratio is a TDD ratio of 0, that the uplink subframe corresponding to the DCI is a TDD
- the uplink subframe corresponding to the LSB of the UL index when the ratio is 0 is set to 1.
- the second determining module is further configured to determine an effective time of the TDD uplink and downlink ratio ratio; and the TDD uplink and downlink ratio according to the effective time It is determined that there is a UL Index domain or a DAI domain in the DCI.
- an uplink information communication system comprising: the uplink information transmitting apparatus and the uplink information receiving apparatus.
- the method and device for transmitting uplink information provided by the embodiment of the present invention, the receiving method and device, and the communication system determine whether a UL Index domain or a DAI domain exists in the DCI according to the TDD ratio information, thereby ensuring the normal function of the UL Index domain or the DAI domain.
- the function can reduce the overhead of downlink control signaling or uplink control signaling, and improve system capacity.
- FIG. 1 is a flowchart of a method for transmitting an uplink information according to an embodiment of the present invention
- FIG. 2 is a flow chart showing an uplink information transmitting method and a receiving method according to another embodiment of the present invention
- FIG. 3 shows a flow of an uplink information transmitting method and a receiving method according to still another embodiment of the present invention. Description
- FIG. 4 is a flow chart showing an uplink information transmitting method and a receiving method according to still another embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of an uplink information transmitting apparatus according to still another embodiment of the present invention
- FIG. 6 is a schematic structural diagram of an uplink information receiving apparatus according to still another embodiment of the present invention
- FIG. 8 is a block diagram showing the structure of an uplink information communication system according to another embodiment of the present invention. detailed description
- FIG. 1 it is a flowchart of an uplink information sending method according to an embodiment of the present invention, where the method specifically includes:
- Step S101 The UE receives the downlink control information DCI and the TDD uplink and downlink ratios sent by the base station.
- the ratio includes a ratio or an uplink reference ratio in a Physical Downlink Control Channel (PDCCH);
- the format of the physical downlink control channel PDCCH may be any one of the DCI format lc, the DCI format 3/3A : DCI format 1A, and may be a new format, which is not limited by the present invention.
- Step S103 The UE sends uplink information corresponding to the determined UL Index domain or DAI domain to the base station according to the determined UL Index domain or DAI domain and the TDD uplink and downlink ratio.
- the LTE TDD downlink transmission in this embodiment supports a Hybrid Automatic Repeat Request (HARQ) technology.
- the base station is configured to send a Physical Downlink Share Channel (PDSCH) or a downlink semi-persistent scheduling release to the UE in a subframe.
- PDSCH Physical Downlink Share Channel
- a downlink semi-persistent scheduling release to the UE in a subframe.
- the UE sends a HARQ confirmation of the PDSCH or downlink SPS release signaling to the base station in the upper 4 ⁇
- HARQ-Acknowledge, HARQ-ACK information
- HARQ-Acknowledge, HARQ-ACK information
- the base station can know whether the UE correctly receives the PDSCH or the downlink SPS release signaling. For example, when the uplink-downlink ratio is 2, the PUSCH transmitted on the subframe 2 needs to feed back the HARQ-ACK information of the downlink associated subframes of ⁇ 8, 7, 4, 6 ⁇ .
- the standard specifies that, in the uplink subframe, if the UE needs to transmit the PUSCH, the HARQ-ACK information is carried on the PUSCH, otherwise the HARQ-ACK information is carried in the PUCCH (Physical Uplink Control Channel).
- Table 3 Downlink Association Set Index: ⁇ k flossk x , . . . , k M _ x ⁇
- the PUSCH subframe scheduled by the GRANT is n+k, and the k value is as shown in Table 2.
- the PUSCH subframe scheduled by the UL GRANT is n+7.
- FIG. 2 it is a flowchart of an uplink information sending method and a receiving method according to another embodiment of the present invention, where the method mainly includes:
- Step S201 The base station sends downlink control information DCI and TDD uplink-downlink ratio to the UE.
- the uplink and downlink ratios of the TDD include a ratio in the PDCCH and an uplink reference ratio, where the ratio in the PDCCH is carried in the PDCCH notification information and sent to the UE, and the uplink reference ratio is carried in the radio resource control (Radio Resource Control, RRC). ) Issued in signaling.
- the domain is determined according to the ratio in the PDCCH as an example.
- Step S203 The UE receives the DCI information sent by the base station and the TDD uplink and downlink ratio.
- the TDD ratio includes a ratio in the PDCCH and an uplink reference ratio.
- Step S204 The UE determines, according to the TDD uplink-downlink ratio, that a UL Index domain or a DAI domain exists in the DCI.
- Step S205 The UE sends a message to the base station according to the determined UL Index domain or DAI domain. Determining the uplink information corresponding to the existing UL Index domain or DAI domain;
- Step S206 The base station retrieves a subframe corresponding to the received uplink information.
- the base station receives the uplink sent by the UE on the uplink subframe corresponding to the determined UL index domain.
- the determining, by the UE, the TDD uplink-downlink ratio includes: if the ratio in the PDCCH is any one of the TDD ratios 0, 3, and 6, the shell ljUE determines that the UL index field exists in the DCI; If the ratio in the PDCCH is any one of the TDD ratios 1, 2, 4, and 5, the UE determines that
- the UE performs the determination of the UL Index domain or the DCI domain after the ratio of the received PDCCH is valid. Then, before step S204, it also includes:
- the base station sends signaling to the UE that includes the effective time of the ratio in the PDCCH; the signaling may be high layer signaling, such as RRC signaling; or may be physical layer signaling, such as PDCCH notification information, in this case.
- the effective time and the TDD uplink-downlink ratio can be sent to the UE together with the information notified by the PDCCH.
- the UE determines whether the ratio in the PDCCH is valid according to the effective time of the ratio in the PDCCH, and performs step S204 simultaneously and after the activation.
- the UE determines the HARQ timing relationship of the uplink data according to the uplink reference ratio, and determines the location of the uplink subframe to be scheduled according to the determined timing relationship.
- step S205 is specifically to send uplink information corresponding to the DCI to the base station in the uplink subframe corresponding to the determined UL index domain. Further, the embodiment further includes: receiving, by the UE, a downlink reference ratio that is sent by the base station, where the downlink reference ratio can be carried in the RC signaling and sent to the UE, where the UE further needs to correspond to the downlink reference ratio.
- the HARQ-ACK information corresponding to the maximum value of the number of subframes that need to be fed back is sent to the base station.
- step S205 specifically sends, to the UE, HARQ-ACK information corresponding to the determined DAI domain to the base station.
- the UE determines that the uplink subframe corresponding to the DCI domain is the uplink corresponding to the LSB of the UL index domain when the TDD ratio is 0. Subframe.
- the uplink reference ratio and the downlink reference ratio are introduced in the LTE TDD system of the present embodiment.
- the HARQ timing relationship of the uplink data is only the HARQ timing relationship of the uplink reference ratio, regardless of the actual uplink and downlink ratios.
- the HARQ timing relationship of the downlink data only uses the HARQ timing relationship of the downlink reference ratio.
- the HARQ timing relationship of the uplink reference ratio refers to the HARQ timing relationship corresponding to the uplink data in the uplink and downlink ratio
- the HARQ timing relationship of the downlink reference ratio refers to the downlink subframe in the uplink and downlink ratio (including the special subframe).
- the lower part of the middle corresponds to the HARQ timing relationship.
- the valid subframe can be defined as a subframe that carries data.
- a special subframe that can carry a downlink subframe can be regarded as a valid downlink subframe.
- the timing relationship between the PDCCH or the ePDCCH with the uplink DCI and the corresponding physical uplink shared channel can be interpreted as follows: If the PDCCH with the uplink DCI or the subframe where the ePDCCH is located is n2, then the corresponding physical uplink shared channel is located.
- the subframe is n2+k2, and the specific k2 can be obtained by looking up Table 2. For example, when the uplink and downlink ratio of TDD is 0, for subframe 0, k2 is 4, and the corresponding physical uplink shared channel is 4; for subframe 1, k2 is 6, and the corresponding physical uplink shared channel is located.
- the frame is 7.
- the number of uplink subframes is six, which is more than the number of downlink subframes.
- the UL Index simultaneously allocates resources of 2 uplink subframes for the same UE.
- the scheduled subframe position is represented by 2 bits in the UL Index field of DCI format O.
- the UL bit field high bit in the DCI format O/4 is set to 1
- the PUSCH subframe corresponding to the DCI format O/4 is n+k2
- the k2 value is also shown in Table 2.
- the UL bit of the UL Index field in the DCI format0 is set to 1
- the PUSCH subframe corresponding to the DCI format O/4 is n+7.
- the UL Index domain and the DAI domain can function normally.
- the UL Index can simultaneously schedule two uplink subframes in one DC of one downlink subframe, which can save PDCCH overhead, and the DAI can save.
- Scenario 1 The UL Index field exists. If the DAI field does not exist, how to send HARQ-ACK information on the PUSCH.
- the uplink reference ratio is TDD ratio 0, and the ratio is TDD ratio 6.
- the HARQ timing relationship of the uplink data adopts the uplink reference ratio, that is, the TDD ratio is 0.
- the subframe 1 can schedule the uplink subframe 7 and the uplink subframe 8
- the downlink subframe 5 can schedule the uplink subframe 9 and the subframe 2 of the next radio frame
- the downlink subframe 6 can schedule the subframe 2 and the subframe of the next radio frame.
- the uplink reference ratio is TDD ratio 0, and the PDCCH notification information is also TDD ratio 0.
- the PDCCH notification ratio information is also TDD ratio 0.
- TDD ratio 0 the PDCCH notification ratio information
- the number of valid uplink subframes is 6, which is greater than the number of valid downlink subframes. Therefore, the UL Index field must exist to indicate which one or two of the two subframes are scheduled.
- the uplink reference ratio is TDD ratio 0, and the PDCCH notification information is The TDD ratio is 3, then the HARQ timing relationship of the uplink data for the UE uses the HARQ timing relationship of the uplink data in the TDD ratio 0, and looks up Table 2.
- the downlink subframe 0 can schedule the uplink subframe. 4 and subframe 7, the downlink subframe 1 can schedule the uplink subframe 7 and the uplink subframe 8, and the downlink subframe 5 can schedule the uplink subframe 9 and the uplink subframe 2 of the next radio frame, and the downlink subframe 6 can schedule the next subframe.
- both the subframe 2 and the subframe 3 are uplink subframes, which are all scheduled by the downlink subframe 6, so the UL index domain still needs to exist. Indicates which of the two subframes or two of the two are scheduled.
- the UE needs to feed back the corresponding HARQ-ACK information on the PUSCH according to the maximum value M of the number of subframes that need to be fed back corresponding to the downlink reference ratio in Table 3.
- the following example shows that when the downlink reference ratio is TDD ratio 2, the four downlink subframes of 8, 7, 4, and 6 need to be fed back in one uplink subframe.
- the PUSCH sent on subframe 2 needs Feedback ⁇ 8, 7, 4, 6 ⁇ HARQ-ACK information of these downlink subframes, and since the DAI domain does not exist, the UE feeds back the corresponding HARQ according to the maximum value M of the number of subframes that need to be fed back in Table 2.
- Scenario 2 The DAI field exists. If the UL Index field does not exist, how to specify the information of the scheduled uplink subframe.
- the uplink subframe scheduled by DCI format 0/4 always defaults to the corresponding uplink subframe when the TDD ratio is 0 and the LSB of the UL index is set to 1.
- the subframe 2 and the subframe 3 of the radio frame are generally represented by two bits.
- the MSB (Most significant bit) indicates the previous subframe in the two subframes, and the LSB (least significant bit) indicates The latter subframe of the two subframes. For example, if the LSB of the UL Index in DCI format 0/4 on the downlink subframe 0 is set to 1, it means that subframe 7 is scheduled; TDD ratio The number of effective subframes in the downlink, the number of downlink subframes is greater than the number of uplink subframes, and one uplink subframe needs to feed back the HARQ RQ-ACK information of multiple downlink subframes, so that the DAI domain can exist to reduce HARQ- The overhead of ACK.
- the PDCCH notification information is TDD ratio 1, downlink subframe 0 scheduling subframe 7, and downlink subframe 1 scheduling subframe 8
- the downlink subframe 5 schedules the subframe 2 of the next radio frame, and the downlink subframe 6 schedules the subframe 3 of the next radio frame;
- the information notified by the PDCCH is the TDD ratio 2
- the downlink subframe 0 schedules the subframe 7, and the downlink Subframe 5 schedules subframe 2 of the next radio frame
- the information notified by the PDCCH is TDD ratio 4
- downlink subframe 5 schedules subframe 2 of the next radio frame
- downlink subframe 6 schedules subframe of the next radio frame 3
- the information notified by the PDCCH is the TDD ratio 5
- the downlink subframe 5 schedules the subframe 2 of the next radio frame
- B the LSB of the UL index is set to the corresponding uplink subframe.
- a flowchart of a method for transmitting and receiving an uplink information according to another embodiment of the present invention the main difference between this embodiment and the second embodiment is that, in this embodiment, the UE and the base station are configured according to the uplink reference ratio. Determine whether there is a UL Index domain or a DAI domain.
- the method specifically includes:
- Step S301 The base station sends a DCI and a TDD uplink and downlink ratio to the UE.
- Step S302 The base station determines, according to the TDD uplink-downlink ratio, that a UL Index domain or a DAI domain exists in the DCI.
- the uplink and downlink ratio of the TDD includes an uplink reference ratio, which is carried by the base station in the RC signaling and sent to the UE. In this embodiment, it is determined by determining which domain exists in the DCI according to the uplink reference ratio, and the step of determining which domain is described in detail later.
- Step S303 The UE receives the DCI information sent by the base station and the TDD uplink and downlink ratio.
- Step S304 The UE determines, according to the uplink reference ratio in the uplink and downlink ratio of the TDD, that a UL Index domain or a DAI domain exists in the DCI.
- Step S305 The UE sends, to the base station, uplink information corresponding to the determined UL Index domain or the DAI domain according to the determined UL Index domain or the DAI domain.
- Step S306 The base station retrieves a subframe corresponding to the received uplink information.
- the determining, by the UE, the TDD uplink and downlink ratio includes: if the uplink reference ratio is TDD ratio 0, the shell ljUE determines that there is a UL index field in the DCI; if the uplink reference ratio is TDD ratio 1, 2, 3, 4, 5, 6 of any one, the UE determines that there is a DAI domain in the DCI.
- the UE performs the determination of the UL Index domain or the DCI domain after the received uplink reference ratio is valid. Then, before step S304, it also includes:
- the base station sends signaling to the UE that includes the effective time of the uplink reference ratio; the signaling may be high layer signaling, such as RRC signaling; or may be physical layer signaling, such as information of the PDCCH notification.
- the signaling may be high layer signaling, such as RRC signaling; or may be physical layer signaling, such as information of the PDCCH notification.
- the UE determines whether the uplink reference ratio is valid according to the effective time of the uplink reference ratio, and performs step S304 at the same time as and after the activation.
- the UE determines the HARQ timing relationship of the uplink data according to the uplink reference ratio, and determines the location of the uplink subframe to be scheduled according to the determined timing relationship.
- step S305 is specifically to send uplink information corresponding to the DCI to the base station in the uplink subframe corresponding to the determined UL index domain.
- the embodiment further includes: receiving, by the UE, a downlink reference ratio sent by the base station, where the downlink reference ratio can be carried in the RC signaling For the UE, then the UE also needs to respond to the downlink reference ratio.
- the HARQ-ACK information corresponding to the maximum value of the number of frames is transmitted to the base station.
- step S305 is specifically to send, to the UE, HARQ-ACK information corresponding to the determined DAI domain to the base station.
- the UE further determines that the uplink subframe corresponding to the DCI domain is the uplink corresponding to the LSB of the UL index domain when the TDD ratio is 0. Subframe.
- the uplink reference ratio bearer is in the RRC signaling, and only when the uplink reference ratio is valid, and later, the base station and the UE can determine the DCI. Whether the UL Index or DAI domain exists.
- the beneficial effects of this embodiment are that the judgment of whether the UL Index domain or the DAI domain exists is semi-static without being limited by the reliability of the PDCCH performance, and the probability that the UL Index domain functions is relatively large.
- the uplink reference ratio is TDD ratio
- the ratio in the PDCCH is also TDD ratio
- the method is the same as the system before R12; and the ratio in the PDCCH is TDD ratio 1. 2, 3, 4, 5, or 6, because the DAI domain does not exist, the user needs to feed back the corresponding maximum value M of the number of subframes corresponding to the feedback corresponding to the downlink reference ratio in Table 2.
- HARQ-ACK information when the uplink reference ratio is TDD ratio 0, and the ratio in the PDCCH is also TDD ratio 0, the method is the same as the system before R12; and the ratio in the PDCCH is TDD ratio 1. 2, 3, 4, 5, or 6, because the DAI domain does not exist, the user needs to feed back the corresponding maximum value M of the number of subframes corresponding to the feedback corresponding to the downlink reference ratio in Table 2.
- FIG. 4 is a flowchart of a method for transmitting and receiving an uplink information according to a further embodiment of the present invention
- the main difference between this embodiment and the third embodiment is that the UE and the base station according to the downlink reference ratio in this embodiment. Determine whether there is a UL Index domain or a DAI domain.
- the method specifically includes:
- Step S401 The base station sends downlink control information DCI and TDD uplink-downlink ratio to the UE.
- the TDD uplink-downlink ratio includes a downlink reference ratio, which is carried by the base station in the RCC signaling and sent to the UE.
- a downlink reference ratio which is carried by the base station in the RCC signaling and sent to the UE.
- the following reference is used to determine which field exists in the DCI as an example, and the determined steps are described in detail later.
- Step S403 The UE receives the DCI information sent by the base station and the TDD uplink and downlink ratio.
- Step S404 The UE determines, according to the downlink reference ratio in the uplink and downlink ratios of the TDD, that a UL Index domain or a DAI domain exists in the DCI;
- Step S405 The UE sends the uplink information corresponding to the determined UL Index domain or the DAI domain to the base station according to the determined UL Index domain or the DAI domain.
- Step S406 The base station retrieves a subframe corresponding to the received uplink information.
- the determining, by the UE, the TDD uplink and downlink ratio includes: if the downlink reference ratio is TDD ratio 0, the shell ljUE determines that there is a UL Index field in the DCI; if the downlink reference ratio is TDD ratio 1, 2, 3, 4, 5, 6 of any one, the UE determines that there is a DAI domain in the DCI.
- the UE performs the determination of the UL Index domain or the DCI domain after the received uplink reference ratio is valid. Then, before step S304, it also includes:
- the base station sends signaling to the UE that includes the effective time of the downlink reference ratio; the signaling may be high layer signaling, such as RCC signaling; or may be physical layer signaling, such as information of the PDCCH notification.
- the signaling may be high layer signaling, such as RCC signaling; or may be physical layer signaling, such as information of the PDCCH notification.
- the UE determines whether the uplink reference ratio is valid according to the effective time of the downlink reference ratio, and performs step S404 at the same time as and after the activation.
- the downlink reference ratio is also one of the seven ratios in Table 1.
- the primary role of the downlink reference ratio is for downlink HARQ timing, and the downlink reference ratio is carried in RC signaling.
- the reference ratio is valid and can be used later to determine whether the UL Index or DAI domain in the DCI exists.
- the beneficial effect of this embodiment is that the judgment of whether the UL Index or the DAI domain exists is semi-static without being limited by the reliability of the PDCCH performance, and the probability that the DAI functions is large.
- the UE needs to feed back the corresponding HARQ-ACK information according to the maximum value M of the number of subframes that need to be fed back corresponding to the downlink reference ratio.
- the uplink reference ratio is TDD ratio
- the ratio in the PDCCH is also TDD ratio
- the ratio in the PDCCH is TDD ratio 1. 2, 3, 4, 5, or 6, because the DAI domain does not exist, the user needs to feed back the corresponding HARQ according to the maximum value M of the number of subframes that need to be fed back corresponding to the downlink reference ratio in Table 2. -ACK information.
- FIG. 5 is a schematic structural diagram of an uplink information sending apparatus according to another embodiment of the present invention.
- the uplink information sending apparatus 100 includes: a first receiving module 101, a first determining module 102, and a first sending module 103. .
- the first receiving module 101 is configured to receive the DCI and the TDD uplink and downlink ratios sent by the base station.
- the first determining module 102 is connected to the first receiving module 101, and is configured to determine that the UL index domain exists in the DCI according to the uplink and downlink ratio of the TDD. Or DAI domain; TDD uplink and downlink ratio includes the ratio in the PDCCH or the uplink reference ratio.
- the first sending module 103 is connected to the first determining module 102, and configured to send uplink information corresponding to the DCI to the uplink subframe corresponding to the determined UL Index field according to the determined UL Index domain or the DAI domain. And transmitting, by the base station, the HARQ-ACK information corresponding to the determined DAI domain to the base station according to the determined DAI domain.
- the first determining module 102 is specifically configured to: when the ratio in the PDCCH is any one of the TDD ratios 0, 3, and 6, determine that the UL index domain exists in the DCI.
- the ratio in the PDCCH is any one of the TDD ratios 1, 2, 4, and 5, it is determined that the DAI domain exists in the DCI.
- the uplink reference ratio is 0, the UL index field exists in the DCI.
- the uplink reference ratio is any one of 1, 2, 3, 4, 5, and 6 of the TDD ratio, it is determined that the DAI domain exists in the DCI.
- the first receiving module 101 is further configured to: receive an uplink reference ratio that is sent by the base station and is carried in the RC signaling or the SIB 1 signaling.
- the first receiving module 101 is further configured to receive a downlink reference ratio sent by the base station; the first sending module 103 is further configured to: reverse the corresponding requirement of the downlink reference ratio
- the HARQ-ACK information corresponding to the maximum value of the number of fed subframes is transmitted to the base station in an uplink subframe corresponding to the determined UL Index field.
- the embodiment further includes: a first subframe determining module 104, configured to determine, when the uplink reference ratio is a TDD ratio of 0, the LSB of the UL index domain when the uplink subframe corresponding to the DCI is the TDD ratio 0 Set to 1 corresponding to the uplink subframe.
- a first subframe determining module 104 configured to determine, when the uplink reference ratio is a TDD ratio of 0, the LSB of the UL index domain when the uplink subframe corresponding to the DCI is the TDD ratio 0 Set to 1 corresponding to the uplink subframe.
- the first determining module 102 is further configured to: determine an effective time of the TDD uplink and downlink ratio sent by the base station; and determine, according to the effective TDD, the uplink and downlink ratio, that the UL index domain or the DAI domain exists in the DCI.
- the uplink data receiving apparatus 200 includes: a second sending module 201, a second determining module 202, and a second receiving. Module 203.
- the second sending module 201 is configured to send the downlink control information DCI and the TDD uplink and downlink ratio to the UE.
- the second determining module 202 is connected to the second sending module 201, and is configured to determine that the UL exists in the DCI according to the TDD uplink and downlink ratio.
- the index domain or the DAI domain; the TDD uplink-downlink ratio includes a ratio or an uplink reference ratio in the PDCCH;
- the second receiving module 203 is connected to the second determining module 202, and configured to correspond to the determined UL index domain. Receiving the uplink information corresponding to the DCI sent by the UE in the uplink subframe, or receiving the HARQ-ACK information corresponding to the determined DAI domain sent by the UE according to the determined DAI domain.
- the second determining module 202 is specifically configured to: when the ratio in the PDCCH is any one of the TDD ratios 0, 3, and 6, determine that the UL index domain exists in the DCI.
- the ratio in the PDCCH is any one of the TDD ratios 1, 2, 4, and 5, the UE determines that the DAI field exists in the DCI.
- the uplink reference ratio is 0 for the TDD ratio, it is determined that the UL Index field exists in the DCI.
- the uplink reference ratio is any one of 1, 2, 3, 4, 5, and 6 of the TDD ratio, it is determined that the DAI domain exists in the DCI.
- the second sending module 201 is further configured to: carry the uplink reference ratio in the RC signaling or the SIB1 letter. The order is sent to the base station.
- the second sending module 201 is further configured to: send a downlink reference ratio to the UE;
- the second receiving module 203 is further configured to: receive, according to the uplink sub-frame corresponding to the existing UL index field, the requirement corresponding to the downlink reference ratio sent by the UE.
- the maximum number of subframes fed back corresponds to HARQ-ACK from
- the second subframe determining module 204 is further configured to: when the uplink reference ratio is TDD ratio 0, determine that the uplink subframe corresponding to the DCI is set to 1 when the LSB of the UL index when the TDD ratio is 0 is set to 1. Uplink subframe.
- the second determining module 202 is further configured to determine an effective time of the TDD uplink and downlink ratio; and determine, according to the book TDD uplink and downlink ratio after the effective time, that the UL Index domain or the DAI domain exists in the DCI.
- FIG. 7 is a schematic structural diagram of an uplink data communication system according to another embodiment of the present invention.
- the uplink data communication system 1000 includes: uplink information sending apparatus 100 in Embodiment 5 and uplink information receiving in Embodiment 6. Device 200.
- FIG. 8 is a block diagram showing the structure of a network device according to another embodiment of the present invention.
- the network device 1100 may be a host server having a computing capability, a personal computer PC, or a portable computer or terminal that can be carried.
- the specific embodiment of the present invention does not limit the specific implementation of the computing node.
- the network device 1100 includes a processor 110, a communications interface 1120, a memory 130, and a bus 1140. Among them, the processor 1110, the communication interface 1120, and the memory 1130 complete communication with each other through the bus 1140.
- Communication interface 1120 is for communicating with network devices, such as virtual machine management centers, shared storage, and the like.
- the processor 1110 is configured to execute a program.
- the processor 1110 may be a central processing unit CPU, or
- the application is an Application Specific Integrated Circuit (ASIC) or one or more integrated circuits configured to implement the embodiments of the present invention.
- ASIC Application Specific Integrated Circuit
- the memory 1130 is used to store files.
- the memory 1130 may include a high speed RAM memory, and may also include a non-volatile memory such as at least one disk memory.
- Memory 1130 can also be a memory array.
- the memory 1130 may also be partitioned, and the blocks may be combined into a virtual volume according to certain rules.
- the above described program may be a program code that includes computer operating instructions. This program can be used to:
- the row ratio includes a ratio or an uplink reference ratio in the physical downlink control channel PDCCH;
- the base station Transmitting the uplink information corresponding to the DCI to the base station in an uplink subframe corresponding to the determined UL Index field according to the determined UL Index field; or according to the determining the existing DAI domain,
- the base station transmits HARQ-ACK information corresponding to the DAI domain that is determined to exist.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL index domain or the DAI domain in the DCI specifically includes: the ratio in the PDCCH is When any of TDD ratios 0, 3, and 6 is used, it is determined that UL Indexig! exists in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL index domain or the DAI domain in the DCI specifically includes: the ratio in the PDCCH is When any one of the TDD ratios 1, 2, 4, and 5 is used, it is determined that the DAI domain exists in the DCI.
- the Determining the presence of the UL Index field or the DAI field in the DCI specifically includes: when the uplink reference ratio is a TDD ratio of 0, determining that a UL Index field exists in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI specifically includes: the uplink reference ratio is TDD.
- the uplink reference ratio is TDD.
- the TDD uplink and downlink ratio sent by the receiving base station specifically includes:
- the base station And receiving, by the base station, the uplink reference ratio that is carried in the radio source source control RRC signaling or the system information block SIB1 signaling.
- the method further includes: receiving a downlink reference ratio sent by the base station;
- the HARQ-ACK information corresponding to the maximum value of the number of subframes to be fed back corresponding to the downlink reference ratio is sent to the base station in the uplink subframe corresponding to the determined UL Index field.
- the method further includes: when the uplink reference ratio is a TDD ratio of 0, determining that the uplink subframe corresponding to the DCI is a UL index domain when the TDD ratio is 0. The corresponding uplink subframe is set when the LSB is set to 1.
- the determining, according to the uplink and downlink ratio of the TDD, determining that the UL index domain or the DAI domain exists in the DCI further includes:
- the program can also be used to:
- the TDD uplink and downlink ratio includes a ratio or an uplink reference ratio in the PDCCH;
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL index domain or the DAI domain in the DCI specifically includes: the ratio in the PDCCH When any one of 0, 3, and 6 is allocated for TDD, it is determined that there is a UL Indexi ⁇ in the DCI.
- the determining, by the base station, that the UL index domain or the DAI domain exists in the DCI according to the uplink and downlink ratio of the TDD specifically: the ratio in the PDCCH is TDD.
- the ratio is 1, 2, 4, or 5
- the UE determines that a DAI domain exists in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI specifically includes: the uplink reference ratio is TDD. When the ratio is 0, it is determined that there is a UL Index field in the DCI.
- the determining, according to the TDD uplink and downlink ratio, that the presence of the UL Index domain or the DAI domain in the DCI specifically includes: the uplink reference ratio is TDD.
- the uplink reference ratio is TDD.
- the sending the TDD uplink and downlink ratio to the UE specifically includes: And transmitting the uplink reference ratio to the base station in RC signaling or SIB1 signaling.
- the method further includes: transmitting a downlink reference ratio to the UE; receiving, by using the UE, the uplink subframe corresponding to the determined UL index domain The HARQ-ACK corresponding to the maximum value of the number of subframes that need to be fed back corresponding to the downlink reference ratio
- the method further includes: determining, when the uplink reference ratio of the book is a TDD ratio of 0, determining an uplink subframe corresponding to the DCI The uplink subframe corresponding to the LSB of the UL index when the TDD ratio is 0 is set to 1.
- the determining, according to the TDD uplink and downlink ratio, that determining that the UL index domain or the DAI domain exists in the DCI further includes: determining that the TDD uplink and downlink ratio is effective Determining, according to the TDD uplink-downlink ratio, determining that the UL index domain or the DAI domain exists in the DCI specifically includes:
- the computer software product is typically stored in a computer readable non-volatile storage medium, including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all of the methods of various embodiments of the present invention. Or part of the step.
- the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
- the method and device for transmitting uplink information provided by the embodiment of the present invention, the receiving method and device, and the communication system determine whether a UL Index domain or a DAI domain exists in the DCI according to the TDD ratio information, thereby ensuring the normal function of the UL Index domain or the DAI domain.
- the function can reduce the overhead of downlink control signaling or uplink control signaling, and improve system capacity.
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Abstract
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Priority Applications (5)
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EP13894353.5A EP3043601A4 (en) | 2013-09-26 | 2013-09-26 | METHOD AND DEVICE FOR SENDING UPLINK INFORMATION, METHOD AND DEVICE FOR RECEIVING UPLINK INFORMATION AND COMMUNICATION SYSTEM |
PCT/CN2013/084365 WO2015042843A1 (zh) | 2013-09-26 | 2013-09-26 | 上行信息发送方法及装置、接收方法及装置、通信系统 |
KR1020167010769A KR20160060744A (ko) | 2013-09-26 | 2013-09-26 | 업링크 정보 전송 방법 및 장치, 수신 방법 및 장치, 그리고 통신 시스템 |
CN201380002199.5A CN104823487A (zh) | 2013-09-26 | 2013-09-26 | 上行信息发送方法及装置、接收方法及装置、通信系统 |
US15/081,210 US20160212744A1 (en) | 2013-09-26 | 2016-03-25 | Uplink information sending method and apparatus, receiving method and apparatus, and communications system |
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PCT/CN2013/084365 WO2015042843A1 (zh) | 2013-09-26 | 2013-09-26 | 上行信息发送方法及装置、接收方法及装置、通信系统 |
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CN108352942A (zh) * | 2015-11-06 | 2018-07-31 | 华为技术有限公司 | 信息传输的方法、终端和基站 |
US11239938B2 (en) | 2017-11-17 | 2022-02-01 | Huawei Technologies Co., Ltd. | Information transmission method and device |
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CN104247304B (zh) * | 2012-04-24 | 2017-12-15 | Lg电子株式会社 | 用于在无线通信系统中为下行链路控制信道的搜索区域配置资源块的方法及其装置 |
US10582492B2 (en) * | 2013-12-18 | 2020-03-03 | Lg Electronics Inc. | Method for transmitting and receiving signal by terminal in wireless communication system and apparatus therefor |
EP4307601A2 (en) * | 2014-03-06 | 2024-01-17 | InterDigital Patent Holdings, Inc. | Full duplex operation in wireless systems |
US20180294927A1 (en) * | 2015-11-05 | 2018-10-11 | Ntt Docomo, Inc. | User terminal, radio base station and radio communication method |
WO2017075857A1 (zh) * | 2015-11-06 | 2017-05-11 | 华为技术有限公司 | 信息传输的方法、终端和基站 |
KR102629352B1 (ko) | 2016-05-13 | 2024-01-25 | 삼성전자주식회사 | 무선 셀룰라 통신 시스템에서 상향링크 데이터 및 제어신호 전송 타이밍 결정 방법 및 장치 |
CN106255215B (zh) * | 2016-08-05 | 2019-12-10 | 宇龙计算机通信科技(深圳)有限公司 | 通信方法及通信装置 |
CN111277386B (zh) * | 2019-03-28 | 2021-09-17 | 维沃移动通信有限公司 | 下行分配索引确定方法、终端和网络设备 |
CN111277362B (zh) * | 2019-04-30 | 2022-01-28 | 维沃移动通信有限公司 | 下行控制信息的接收方法、发送方法、终端和网络侧设备 |
CN116095834A (zh) * | 2021-10-29 | 2023-05-09 | 上海朗帛通信技术有限公司 | 一种被用于无线通信的节点中的方法和装置 |
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EP3043601A1 (en) | 2016-07-13 |
US20160212744A1 (en) | 2016-07-21 |
CN104823487A (zh) | 2015-08-05 |
KR20160060744A (ko) | 2016-05-30 |
EP3043601A4 (en) | 2016-09-28 |
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