WO2016146073A1 - Équipement utilisateur (ue) prenant en charge une superposition multiutilisateur, procédé et dispositif de station de base - Google Patents

Équipement utilisateur (ue) prenant en charge une superposition multiutilisateur, procédé et dispositif de station de base Download PDF

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WO2016146073A1
WO2016146073A1 PCT/CN2016/076608 CN2016076608W WO2016146073A1 WO 2016146073 A1 WO2016146073 A1 WO 2016146073A1 CN 2016076608 W CN2016076608 W CN 2016076608W WO 2016146073 A1 WO2016146073 A1 WO 2016146073A1
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signaling
dynamic signaling
dynamic
epdcch
auxiliary information
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PCT/CN2016/076608
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Chinese (zh)
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张晓博
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上海朗帛通信技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

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  • the present invention relates to a scheme for scheduling signaling in a wireless communication system, and more particularly to a method and apparatus for downlink scheduling signaling for multi-user superposition based on LTE-Long Term Evolution.
  • the downlink wireless signals of multiple users are through ⁇ TDM (Time Division Multiplexing), FDM (Frequency Division Multiplexing). ), one or more of CDM (Code Division Multiplexing) is implemented.
  • a new research topic (RP-150496) is introduced in 3GPP R (Release, Release) 13, which is a downlink multi-user overlay, which essentially distinguishes the downlink wireless signals of two users by using different transmission powers.
  • the two users usually include a near user (ie, close to the base station) and a far user (ie, far from the base station), and the base station allocates a lower transmission power for the first signal for the near user, and is the first for the remote user.
  • the second signal distributes a higher transmit power.
  • the far user directly demodulates the second signal (that is, the first signal is treated as noise), and the near user first demodulates the second signal (taking into account that the near-user farther user has lower path loss, the probability of successful decoding is high. And then removing the influence of the second signal from the received signal to obtain a residual signal, and decoding the remaining signal to obtain a first signal, which is an SIC (Successive Interference Cancellation) algorithm.
  • SIC Successessive Interference Cancellation
  • the near user needs to obtain scheduling information of the first signal and the second signal - and the far user only needs to obtain the scheduling information of the second signal.
  • a user obtains a PDSCH (Physical Downlink) according to DCI (Downlink Control Information) transmitted in a PDCCH (Physical Downlink Control Channel) or an EPDCCH (Enhanced PDCCH). Scheduling information of the Shared Channel, the physical downlink control channel. Therefore, an intuitive idea is that the base station transmits scheduling information of the first signal and the second signal in the DCI for the near user, and transmits the scheduling information of the second signal in the DCI of the far user.
  • DCI Downlink Control Information
  • PDCCH Physical Downlink Control Channel
  • EPDCCH Enhanced PDCCH
  • the scheduling information of the second signal is sent twice, which reduces the transmission efficiency.
  • the possible load size (payload size) of the DCI for the near user may be more.
  • the load size of the DCI is determined by the DCI format, that is, the load size of the DCI for the near user is not only affected by the scheduling format of the first signal, but also by the DCI format for the far user. Too many possible load sizes lead to an increase in the number of BD (Blind Decoding), which in turn increases the complexity of the UE.
  • the inventors have found through further research that there may be more than one far-user scheduled on the time-frequency resources of the near-user (the non-overlapping between the far users), and in order to perform the SIC, the DCI for the near-user may include more Scheduling information for remote users. This further exacerbates the above problems.
  • the present invention provides a solution. It should be noted that, in the case of no conflict, the features in the embodiments and embodiments in the UE of the present application can be applied to the base station, and vice versa. Further, the features of the embodiments and the embodiments of the present application may be combined with each other arbitrarily without conflict.
  • the invention discloses a method in a UE supporting multi-user superposition, which comprises the following steps:
  • Step A Receiving the first signaling, respectively receiving K1 dynamic signaling according to the K1 group auxiliary information.
  • the K1 group auxiliary information is indicated by the first signaling, and the K1 group auxiliary information and the K1 dynamic signaling are in one-to-one correspondence, and the auxiliary information includes a ⁇ signaling identifier, a PDCCH/EPDCCH flag bit, and a time-frequency position.
  • Step B Receive K1 wireless signals according to the scheduling information in the K1 dynamic signaling, and receive the first wireless signal according to the scheduling information of the first signaling.
  • the time-frequency resource occupied by each of the K1 wireless signals and the time-frequency resource occupied by the first wireless signal completely or partially overlap, and the K1 is a positive integer.
  • the first signaling and the K1 dynamic signaling are physical layer signaling. If the K1 is greater than 1, the K1 wireless signals are orthogonal to each other on time-frequency resources.
  • the essence of the above aspect is that the UE first receives multiple physical layer signaling before receiving the wireless signal.
  • the above-mentioned nature is contrary to the common knowledge in the existing cellular network, because one of the multiple physical layer signalings cannot be correctly received, which may result in the UE being unable to receive the downlink wireless signal.
  • the inventors have found through research that the above-mentioned common knowledge is no longer valid in a multi-user overlay scenario because the probability that a near user correctly receives a given DCI for a far user is greater than the probability that a far user correctly receives the given DCI.
  • the signaling identifier is used to determine one or more of a ⁇ CRC scrambling code, a PDCCH UE-specific search space, and an EPDCCH UE-specific search space ⁇ corresponding to the dynamic signaling.
  • the signaling identifier is an RNTI (Radio Network Temporary Identity).
  • RNTI Radio Network Temporary Identity
  • the first wireless signal is obtained by using the SIC algorithm for the K1 wireless signals.
  • the foregoing method further includes the following steps:
  • Step C Pass the first wireless signal to the upper layer and discard the K1 wireless signals.
  • the UE Since the K1 dynamic signaling is not for the UE, the UE needs to obtain additional information (ie, the K1 group auxiliary information) before receiving the K1 dynamic signaling. Further, for the PDCCH and the EPDCCH, the additional information required by the UE may be different. therefore:
  • the corresponding dynamic signaling is transmitted on the PDCCH, and the corresponding auxiliary information is for the PDCCH. If the PDCCH/EPDCCH identifier bit is in a state opposite to the first state, the corresponding dynamic signaling is transmitted on the EPDCCH, and the corresponding auxiliary information is for the EPDCCH.
  • the UE determines the PDCCH or EPDCCH occupied by the DCI through the BD.
  • the excessive number of BDs may increase the false alarm probability, and the time-frequency location and the signaling indication in the auxiliary information can reduce the number of BDs performed by the UE for the K1 dynamic signaling.
  • the base station configures the current TM (transmission mode) for the UE through the high-layer signaling, whether the CIF (Carrier Indicator Field) is included in the DCI, and whether the SCI (Sounding Reference Signal) is included in the DCI. And other high-level information, the UE can determine the load size of the given DCI format according to the auxiliary information. In the present invention, if the UE only knows the load size of the K1 dynamic signaling and does not know the corresponding high layer signaling, the UE may not be able to determine the DCI format, that is, a scenario in which multiple DCI formats have load size conflicts. .
  • One method is to configure all required high layer signaling for the UE through higher layer signaling.
  • the K1 wireless signals can only be DMRS-based transmission, otherwise the target UE of the K1 wireless signals cannot perform rate matching for the DMRS. Or the target UE of the K1 wireless signals is not compatible with the legacy UE.
  • the DMRS-based DCI format does not have a scenario where the load size conflicts. therefore:
  • the first wireless signal is transmitted by the DMRS antenna port, and the UE assumes that the K1 wireless signals are all transmitted by the DMRS antenna port.
  • the auxiliary information does not include the signaling format, and the UE blindly decodes determines the signaling format.
  • each of the K1 wireless signals may be a CRS based transmission or a DMRS based transmission.
  • the scene in which the load size conflicts may occur. therefore:
  • the first wireless signal is transmitted by a CRS antenna port
  • the auxiliary information includes the signaling format
  • the UE assumes that each of the K1 wireless signals is transmitted by a DMRS antenna port or by a same CRS antenna port as the first wireless signal.
  • the UE performs a decoding operation according to the format to determine a possible load size of the corresponding dynamic signaling, and the possible load size is one or more.
  • the step A further includes the following steps:
  • Step A Receive the first higher layer signaling to determine K3 EPDCCH-PRB-sets.
  • the time-frequency location in the corresponding auxiliary information includes at least one of the following:
  • the target dynamic signaling is each dynamic signaling that is transmitted on the EPDCCH in the K1 dynamic signaling, and the EPDCCH candidate occupied by the target dynamic signaling belongs to EPDCCH-PRB-set, the K3 is a positive integer.
  • the second index can additionally reduce the number of BDs, but it is possible to increase the load size of the first signaling.
  • the first higher layer signaling is RRC signaling.
  • the K3 EPDCCH-PRB-sets are subframe-specific (that is, the first high-level signaling is only valid for the current subframe), or the subframe set is specific (that is, the first high-level signaling is only A specific set of subframes is valid).
  • the time-frequency location in the target dynamic signaling corresponding auxiliary information further indicates whether the EPDCCH candidate occupied by the target dynamic signaling is distributed or localized.
  • the K3 is greater than two.
  • the K3 EPDCCH-PRB-sets share the same EPDCCH resource mapping parameter, and the EPDCCH resource mapping parameter indicates that the EPDCCH RE (Resource Element) mapping should perform rate matching (to avoid occupation). ) RE.
  • the K3 EPDCCH-PRB-sets include ⁇ pdsch-Start-r11, crs-PortsCount-r11, crs-PortsCount-r11, csi-RS-ConfigZPId-r11 ⁇ .
  • the time-frequency location in the corresponding auxiliary information includes an index of a PDCCH occupied by the given dynamic signaling in a target PDCCH candidate set, the target The PDCCH candidate set is composed of all PDCCH candidates monitored by the UE on the transmission subframe and the transmission carrier of the given dynamic signaling.
  • the given dynamic signaling is each dynamic signaling that is transmitted on the PDCCH in the K1 dynamic signaling.
  • the step A further includes the following steps:
  • the first integer is used to generate an initial value of the DMRS sequence
  • the initial value of the DMRS sequence is determined by the first signaling and the K1 group signaling all in the EPDCCH The signaling on the transmission is shared.
  • the first integer is a non-negative integer less than 504.
  • the mapping between the initial value of the DMRS sequence and the first integer reuses a mapping relationship between an initial value of the DMRS pseudo-random sequence generator in the EPDCCH and an integer configured by the high-layer signaling dmrs-ScramblingSequenceInt, that is,
  • n s represents the slot index
  • the foregoing aspect forces the K1 dynamic signaling and the first signaling to adopt the same EPDCCH DMRS sequence, which has the advantage of reducing the load size of the first signaling.
  • the step A further includes the following steps:
  • Step A3. Receiving the third higher layer signaling to determine a second set of integers, the second set of integers comprising a plurality of integer elements different from each other.
  • the DMRS associated integer is used to generate an initial value of a DMRS sequence corresponding to the dynamic signaling, where the DMRS associated integer is in the second integer set.
  • the index in is indicated by the first signaling.
  • the integer element is a non-negative integer less than 504.
  • the mapping between the initial value of the DMRS sequence and the corresponding DMRS-associated integer reuses the mapping between the initial value of the DMRS pseudo-random sequence generator in the EPDCCH and the integer configured by the high-level signaling dmrs-ScramblingSequenceInt relationship.
  • the above aspect makes the K1 dynamic signaling and the first signaling possible to adopt a variable EPDCCH DMRS sequence, at the cost of increasing the load size of the first signaling.
  • the invention discloses a method in a base station supporting multi-user superposition, which comprises the following steps:
  • the K1 group auxiliary information is indicated in the first signaling.
  • the K1 group auxiliary information and the K1 dynamic signaling are in one-to-one correspondence, and the auxiliary information includes one or more of ⁇ signaling identifier, time-frequency location, signaling format ⁇
  • Step B Send K1 wireless signals and a first wireless signal.
  • the first signaling includes scheduling information of the first wireless signal, and the scheduling information in the K1 dynamic signaling is used to schedule the K1 wireless signals, respectively.
  • the time-frequency resource occupied by each of the K1 wireless signals and the time-frequency resource occupied by the first wireless signal completely or partially overlap, and the K1 is a positive integer.
  • the first signaling and the K1 dynamic signaling are physical layer signaling.
  • the signaling format includes one or more of ⁇ whether to include CIF, whether to include SRS request, DCI format, transmission mode ⁇ . If the K1 is greater than 1, the K1 wireless signals are orthogonal to each other on time-frequency resources.
  • the DCI format and the transmission mode do not occur simultaneously.
  • the first wireless signal is transmitted by the DMRS antenna port, and the UE assumes that the K1 wireless signals are all transmitted by the DMRS antenna port.
  • the auxiliary information does not include the signaling format, and the UE is blindly translated.
  • the code determines the signaling format.
  • the first wireless signal is transmitted by a DMRS antenna port, the dynamic signaling being one of DCI formats ⁇ 2B, 2C ⁇ .
  • the first wireless signal is transmitted by a CRS antenna port
  • the auxiliary information includes the signaling format
  • the first wireless signal is transmitted by a CRS antenna port
  • the dynamic signaling is one of DCI formats ⁇ 1, 1A, 1B, 1C, 1D, 2, 2A, 2B, 2C ⁇ .
  • the step A further includes the following steps:
  • Step A1 Sending the first higher layer signaling indicates K3 EPDCCH-PRB-sets.
  • the time-frequency location in the corresponding auxiliary information includes at least one of the following:
  • the target dynamic signaling is each dynamic signaling that is transmitted on the EPDCCH in the K1 dynamic signaling, and the EPDCCH-PRB-set to which the EPDCCH candidate occupied by the target dynamic signaling belongs, and the K3 is a positive integer.
  • the time-frequency location in the corresponding auxiliary information includes an index of a PDCCH occupied by the given dynamic signaling in a target PDCCH candidate set, the target The PDCCH candidate set is composed of the target UE of the first signaling on all the PDCCH candidates monitored on the transmission subframe and the transmission carrier of the given dynamic signaling.
  • the given dynamic signaling is each dynamic signaling that is transmitted on the PDCCH in the K1 dynamic signaling.
  • the step A further includes the following steps:
  • Step A2 Sending a second higher layer signaling indicating a first integer, the first integer being used to generate an initial value of the DMRS sequence, the initial value of the DMRS sequence being all the EPDCCH in the first signaling and the K1 group signaling
  • the signaling on the transmission is shared.
  • the step A further includes the following steps:
  • the third higher layer signaling is sent to indicate a second set of integers, and the second set of integers includes a plurality of integer elements that are different from each other.
  • the DMRS associated integer is used to generate an initial value of a DMRS sequence corresponding to the dynamic signaling, where the DMRS associated integer is in the second integer set.
  • the index in is indicated by the first signaling.
  • the invention discloses a user equipment supporting multi-user overlay, wherein the following modules are included:
  • the first module is configured to receive the first signaling, and receive K1 dynamic signaling according to the K1 group auxiliary information.
  • the K1 group auxiliary information is indicated by the first signaling, and the K1 group auxiliary information and the K1 dynamic signaling are in one-to-one correspondence, and the auxiliary information includes ⁇ signaling identifier, time-frequency location, signaling format ⁇
  • the second module is configured to respectively receive K1 wireless signals according to the scheduling information in the K1 dynamic signaling, and receive the first wireless signal according to the scheduling information of the first signaling.
  • the time-frequency resource occupied by each of the K1 wireless signals and the time-frequency resource occupied by the first wireless signal completely or partially overlap, and the K1 is a positive integer.
  • the first signaling and the K1 dynamic signaling are physical layer signaling.
  • the signaling format includes one or more of ⁇ whether to include CIF, whether to include SRS request, DCI format, transmission mode ⁇ . If the K1 is greater than 1, the K1 wireless signals are orthogonal to each other on time-frequency resources.
  • the invention discloses a base station device supporting multi-user superposition, wherein the following modules are included:
  • the first module is configured to send the first signaling and the K1 dynamic signaling.
  • the K1 group auxiliary information is indicated in the first signaling.
  • the K1 group auxiliary information and the K1 dynamic signaling are in one-to-one correspondence, and the auxiliary information includes one or more of ⁇ signaling identifier, time-frequency location, signaling format ⁇
  • the second module is configured to send K1 wireless signals and a first wireless signal.
  • the first signaling includes scheduling information of the first wireless signal, and the scheduling information in the K1 dynamic signaling is used to schedule the K1 wireless signals, respectively.
  • the time-frequency resource occupied by each of the K1 wireless signals and the time-frequency resource occupied by the first wireless signal completely or partially overlap, and the K1 is a positive integer.
  • the first signaling and the K1 dynamic signaling are physical layer signaling.
  • the signaling format includes one or more of ⁇ whether to include CIF, whether to include SRS request, DCI format, transmission mode ⁇ . If the K1 is greater than 1, the K1 wireless signals are orthogonal to each other on time-frequency resources.
  • the present invention has the following technical advantages:
  • FIG. 1 shows a flow chart of scheduling of downlink multi-user overlays in accordance with one embodiment of the present invention
  • FIG. 2 shows a schematic diagram of a first signaling indicating a set of auxiliary information in accordance with an embodiment of the present invention
  • FIG. 3 is a schematic diagram showing resource allocation of downlink multi-user overlay according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of a processing device in a UE according to an embodiment of the present invention.
  • FIG. 5 is a block diagram showing the structure of a processing device in a base station according to an embodiment of the present invention.
  • Embodiment 1 illustrates a scheduling flowchart of downlink multi-user overlay, as shown in FIG.
  • base station N1 is the maintenance base station of the serving cell of UE U2, wherein the steps in block F1 are optional steps.
  • the first signaling and the K1 dynamic signaling are transmitted in step S11.
  • the K1 group auxiliary information is indicated in the first signaling.
  • the K1 group auxiliary information and the K1 dynamic signaling are in one-to-one correspondence.
  • K1 wireless signals and a first wireless signal are transmitted in step S13.
  • the first signaling is received in step S21, and the K1 dynamic signaling is respectively received according to the K1 group auxiliary information.
  • K1 wireless signals are respectively received according to the scheduling information in the K1 dynamic signaling, and the first wireless signal is received according to the scheduling information of the first signaling.
  • the first signaling includes scheduling information of the first wireless signal, and the scheduling information in the K1 dynamic signaling is used to schedule the K1 wireless signals, respectively.
  • the time-frequency resource occupied by each of the K1 wireless signals and the time-frequency resource occupied by the first wireless signal completely or partially overlap, and the K1 is a positive integer.
  • the first signaling and the K1 dynamic signaling are physical layer signaling. If the K1 is greater than 1, the K1 wireless signals are orthogonal to each other on time-frequency resources.
  • the auxiliary information includes ⁇ signaling identifier, time-frequency location, signaling format ⁇ .
  • the signaling format includes ⁇ whether to include CIF, DCI format or transmission mode ⁇ .
  • the base station N1 transmits the first high layer signaling indication K3 EPDCCH-PRB-sets in step S12.
  • the UE U2 receives the first higher layer signaling in step S22.
  • the corresponding auxiliary information includes at least one of the following:
  • the target dynamic signaling is each dynamic signaling that is transmitted on the EPDCCH in the K1 dynamic signaling, and the EPDCCH-PRB-set to which the EPDCCH candidate occupied by the target dynamic signaling belongs, and the K3 is a positive integer.
  • the K1 is 1 or 2.
  • the auxiliary information of the K1 group auxiliary information middle packet includes ⁇ signaling identifier, time-frequency location, signaling format ⁇ , and the auxiliary information of the partial group includes ⁇ signaling identifier, signaling format ⁇ .
  • the UE assumes that the K1 wireless signals are all transmitted by the DMRS antenna port, and the auxiliary information does not include the signaling format. If the first wireless signal is transmitted by a CRS antenna port, the auxiliary information includes the signaling format.
  • Embodiment 2 exemplifies a schematic diagram in which the first signaling indicates a set of auxiliary information, as shown in FIG. Figure 2 illustrates a mapping of a set of auxiliary information in the first signaling, and does not exclude that the first signaling indicates a plurality of sets of auxiliary information.
  • a set of auxiliary information includes ⁇ signaling identifier, time-frequency location, signaling format ⁇ , which are respectively mapped to ⁇ first domain, second domain, third domain ⁇ in the first signaling.
  • the signaling identifier is an RNTI
  • the number of bits included in the first domain is less than 16, and the mapping between the first domain and the RNTI is configured by higher layer signaling. This sub-embodiment can effectively reduce the load size of the first signaling.
  • the number of bits in the second domain corresponding to the EPDCCH is greater than the number of bits in the second domain corresponding to the PDCCH.
  • the transmission carrier of the first wireless signal is an FDD carrier
  • the number of bits in the third domain is one of ⁇ 2, 3, 4, 5, 6 ⁇ .
  • Embodiment 3 exemplifies a resource allocation diagram of downlink multi-user overlay, as shown in FIG.
  • the base station first transmits the first signaling and the two dynamic signaling. Two sets of auxiliary information are indicated in the first signaling. The two sets of auxiliary information and the two dynamic signalings are in one-to-one correspondence.
  • the base station then transmits 2 wireless signals (ie, the second wireless signal and the third wireless signal) and the first wireless signal.
  • the UE first receives the first signaling, and receives the two dynamic signalings according to the two sets of auxiliary information.
  • the UE receives the second wireless signal and the third wireless signal according to the scheduling information in the two dynamic signalings, and then removes the components of the second wireless signal and the third wireless signal from the received signal, and then according to the first signaling.
  • the scheduling information receives the first wireless signal.
  • the first signaling includes scheduling information of the first wireless signal, and the scheduling information in the two dynamic signalings is used to schedule the two wireless signals, respectively.
  • the time-frequency resource occupied by each of the two wireless signals and the frequency domain resource occupied by the first wireless signal partially overlap.
  • the first signaling and the two dynamic signaling are physical layer signaling.
  • the second wireless signal and the third wireless signal are orthogonal in frequency domain resources.
  • the power spectral density of the second wireless signal and the third wireless signal is greater than the power spectral density of the first wireless signal.
  • Embodiment 4 exemplifies a structural block diagram of a processing device in one UE, as shown in FIG.
  • the UE processing apparatus 200 is mainly composed of a first receiving module 201 and a second receiving module 202.
  • the first receiving module 201 is configured to receive the first signaling, and receive K1 dynamic signaling according to the K1 group auxiliary information.
  • the K1 group auxiliary information is indicated by the first signaling, the K1 group auxiliary information and the K1 dynamic signaling are in one-to-one correspondence, and the auxiliary information includes ⁇ signaling identifier, time-frequency Location, signaling format ⁇ .
  • the second receiving module 202 is configured to separately receive K1 wireless signals according to the scheduling information in the K1 dynamic signaling, and receive the first wireless signal according to the scheduling information of the first signaling.
  • the time-frequency resource occupied by each of the K1 wireless signals and the time-frequency resource occupied by the first wireless signal completely or partially overlap, and the K1 is a positive integer.
  • the first signaling and the K1 dynamic signaling are both DCIs for scheduling downlink transmissions.
  • the signaling format includes one or more of ⁇ whether to include CIF, whether to include SRS request, DCI format, transmission mode ⁇ . If the K1 is greater than 1, the K1 wireless signals are orthogonal to each other on time-frequency resources.
  • the first receiving module 201 is further used for one of the following:
  • the auxiliary information corresponding to the EPDCCH in the K1 group auxiliary information further includes a DMRS associated integer, where the DMRS associated integer is used to generate an initial value of a DMRS sequence corresponding to the dynamic signaling, where the DMRS associated integer is in the second integer set.
  • the index in is indicated by the first signaling.
  • the first signaling is a new DCI format
  • the dynamic signaling is in the DCI format ⁇ 1, 1A, 1B, 1C, 1D, 2, 2A, 2B, 2C, 2D ⁇ .
  • the DCI format ⁇ 1, 1A, 1B, 1C, 1D, 2, 2A, 2B, 2C, 2D ⁇ .
  • Embodiment 5 exemplifies a structural block diagram of a processing device in a base station, as shown in FIG.
  • the base station processing apparatus 300 is mainly composed of a first transmitting module 301 and a second transmitting module 302.
  • the first sending module 301 is configured to send the first signaling and the K1 dynamic signaling.
  • the K1 group auxiliary information is indicated in the first signaling.
  • the K1 group auxiliary information and the K1 dynamic signaling are in one-to-one correspondence.
  • the second sending module 302 is configured to send K1 wireless signals and a first wireless signal.
  • the first signaling includes scheduling information of the first wireless signal, and the scheduling information in the K1 dynamic signaling is used to schedule the K1 wireless signals, respectively.
  • the time-frequency resource occupied by each of the K1 wireless signals and the time-frequency resource occupied by the first wireless signal completely or partially overlap, and the K1 is a positive integer.
  • First signaling and the K1 Dynamic signaling is a DCI used to schedule downlink transmissions. If the K1 is greater than 1, the K1 wireless signals do not overlap each other on the time-frequency resource.
  • the first sending module 301 is further configured to send the RRC signaling indication K3 EPDCCH-PRB-set.
  • the corresponding auxiliary information includes a first index, that is, the EPDCCH-PRB-set to which the target dynamic signaling belongs is in the K3 EPDCCH- The index in the PRB-set.
  • the corresponding auxiliary information includes an index of the PDCCH occupied by the given dynamic signaling in a target PDCCH candidate set, and the target PDCCH candidate set
  • the target UE of the first signaling consists of all PDCCH candidates monitored on the transmission subframe and the transmission carrier of the given dynamic signaling.
  • each module unit in the above embodiment may be implemented in hardware form or in the form of a software function module.
  • the application is not limited to any specific combination of software and hardware.
  • the UE in the present invention includes, but is not limited to, a wireless communication device such as a mobile phone, a tablet computer, a notebook, and an internet card.
  • the base station in the present invention includes, but is not limited to, a macro communication base station, a micro cell base station, a home base station, a relay base station, and the like.

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Abstract

La présente invention concerne un équipement utilisateur (UE) prenant en charge une superposition multiutilisateur, un procédé et un dispositif d'une station de base. En tant que mode de réalisation, le procédé comprend l'étape 1 consistant à : recevoir, par un UE, une première signalisation et recevoir respectivement, par l'UE, selon des groupes K1 d'informations auxiliaires, des signalisations dynamiques K1. Les groupes K1 d'informations auxiliaires sont indiqués par la première signalisation, et les groupes K1 d'informations auxiliaires correspondent respectivement aux signalisations dynamiques K1. Dans l'étape 2, selon des informations de planification des signalisations dynamiques K1, recevoir respectivement des signaux radiofréquence (RF) K1, et selon des informations de planification de la première signalisation, recevoir le premier signal RF, une ressource temps-fréquence occupée par chacun des signaux RF K1 étant complètement ou partiellement superposée avec une ressource temps-fréquence occupée par le premier signal RF. La présente invention évite des transmissions répétées des informations de planification pour un même groupe, et économise une ressource d'interface radio. Par conséquent, la présente invention réduit un nombre de réalisations d'une procédure BD par un UE.
PCT/CN2016/076608 2015-03-17 2016-03-17 Équipement utilisateur (ue) prenant en charge une superposition multiutilisateur, procédé et dispositif de station de base WO2016146073A1 (fr)

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CN201510117203.3A CN106034360B (zh) 2015-03-17 2015-03-17 一种多用户叠加的传输方法和装置
CN201510117203.3 2015-03-17

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