WO2010124444A1 - 信息发射与接收的方法和设备 - Google Patents

信息发射与接收的方法和设备 Download PDF

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Publication number
WO2010124444A1
WO2010124444A1 PCT/CN2009/071500 CN2009071500W WO2010124444A1 WO 2010124444 A1 WO2010124444 A1 WO 2010124444A1 CN 2009071500 W CN2009071500 W CN 2009071500W WO 2010124444 A1 WO2010124444 A1 WO 2010124444A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
downlink control
physical downlink
control channel
indication information
Prior art date
Application number
PCT/CN2009/071500
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English (en)
French (fr)
Inventor
官磊
薛丽霞
曲秉玉
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN200980120198.4A priority Critical patent/CN102612849B/zh
Priority to PCT/CN2009/071500 priority patent/WO2010124444A1/zh
Publication of WO2010124444A1 publication Critical patent/WO2010124444A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for blind detection in the field of communications. Background technique
  • a base station NodeB
  • a user equipment User
  • the UE typically communicate on only one carrier.
  • the UE can be divided into an active state and an idle state.
  • the base station comprehensively decides whether to schedule the activation according to the service rate requirement of the UE and a certain scheduling algorithm. State of the UE.
  • the physical downlink control channel (“SCH") is used to carry the scheduling assignment signaling of the UE, and is used to indicate the time-frequency resource allocation information, the modulation and coding mode, and the like of the physical data channel of the UE.
  • the physical data channel includes a Physical Downlink Shared Channel (PDSCH) and a Physical Uplink Shared Channel (PUSCH).
  • the search space is a continuous resource defined by a Control Channel Element (CCE), which can be divided into a common search space and a UE-specific search space.
  • CCE Control Channel Element
  • Four CCE aggregation levels can be used for the physical downlink control channel, which are 1, 2, 4, and 8 levels, respectively.
  • the UE utilizes its own specific scrambling code in its intended search space, including the common search space and
  • the UE-specific search space performs a receiving and blind detecting operation on any one of the physical downlink control channels, wherein the possibility of transmission includes various possible physical downlink control channel information lengths and four CCE aggregation levels.
  • the UE uses Cyclic Redundancy Check (CRC) to check and determine its own physical downlink control channel, and then parses the information to determine the channel scheduled by the base station, including data transmission mode, modulation and coding mode, and The time-frequency resource information and the like are occupied, thereby performing reception detection of downlink data or transmission of uplink data.
  • CRC Cyclic Redundancy Check
  • the UE When the UE is in an active state for a long time but the uplink and downlink services of the UE are not always scheduled by the base station, the UE still needs to detect its own PDCCH channel in each subframe to specifically determine whether it is scheduled by the base station, thus A lot of battery power is consumed.
  • it is required to support a wider bandwidth.
  • One possible way to support a wider bandwidth is to aggregate multiple carriers, that is, to simultaneously allocate resources of multiple carriers to one user to meet higher requirements. Peak rate and business needs.
  • the design of their control channels can be divided into respectively coded PDCCH and jointly coded PDCCH.
  • the number of blind detections caused by the UE detecting the physical downlink control channel will increase significantly, which will adversely affect the power consumption of the UE.
  • the system uses the Radio Resource Control (RRC) signaling or the dynamic physical layer signaling to notify the UE of the carrier to be monitored in a certain period of time, when the UE is in an active state and not In the case of the continuous reception (Discontinuous Receive, referred to as "DRX") state, the UE needs to perform PDCCH blind detection on these carriers in parallel.
  • RRC Radio Resource Control
  • DRX discontinuous Receive
  • the UE For a UE that is not scheduled in a certain subframe or a UE that is scheduled only on a part of the carrier, the UE still needs to perform PDCCH blind detection on all carriers that need to be monitored, thus causing additional blind detection, resulting in Blind detection efficiency is low, and battery power consumption becomes large.
  • the technical problem to be solved by the embodiments of the present invention is to provide a method and a device for transmitting and receiving information, so as to reduce the number of blind detection of the physical downlink control channel of the user equipment, improve the efficiency of blind detection of the physical downlink control channel, and reduce the battery power. Consumption.
  • an embodiment of the present invention provides an information transmission method, including: generating a specific physical downlink control channel, where the specific physical downlink control channel carries indication information indicating whether a user equipment in a user equipment set is scheduled, Wherein the set of user equipment includes at least two user equipments;
  • the embodiment of the invention further provides an information receiving method, including:
  • the network side device And receiving, by the network side device, a specific physical downlink control channel, where the specific physical downlink control channel carries indication information indicating whether the user equipment in the user equipment set is scheduled, where the user equipment set includes at least two user equipments;
  • the embodiment of the invention further provides a network side device, including: a generating module, configured to generate a specific physical downlink control channel, where the specific physical downlink control channel carries indication information indicating whether the user equipment in the user equipment set is scheduled, where the user equipment set includes at least two user equipments;
  • a sending module configured to send the specific physical downlink control channel to the user equipment set.
  • the embodiment of the invention further provides a user equipment, including:
  • a receiving module configured to receive a specific physical downlink control channel from the network side device, where the specific physical downlink control channel carries indication information indicating whether the user equipment in the user equipment set is scheduled, where the user equipment set includes at least two User equipment;
  • a determining module configured to determine, according to the indication information, whether to perform a physical downlink control channel blind detection.
  • the specific physical downlink control channel in the embodiment of the present invention carries the indication information indicating whether the user equipment is scheduled. Therefore, the user equipment can determine whether to perform the blind detection of the physical downlink control channel according to the indication information, thereby avoiding The user equipment performs additional physical downlink control channel blind detection. Therefore, the method and device provided by the embodiments of the present invention can effectively reduce the number of times the user equipment performs blind detection of the physical downlink control channel, improve the efficiency of blind detection of the physical downlink control channel, and reduce the battery power consumption.
  • FIG. 1 is a flow chart of an information transmitting method according to an embodiment of the present invention.
  • FIG 2 is another flow chart of an information transmitting method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of an information receiving method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a network side device according to an embodiment of the present invention.
  • FIG. 6 is another schematic diagram of a network side device according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is another schematic diagram of a user equipment according to an embodiment of the present invention. detailed description
  • an embodiment of the present invention provides an information transmission method, including: S110, generating a specific physical downlink control channel, where the specific physical downlink control channel carries indication information indicating whether the user equipment in the user equipment set is scheduled, where the user equipment set includes at least two user equipments;
  • the network side device generates a specific physical downlink control channel, where the specific physical downlink control channel carries indication information indicating whether the user equipment set is scheduled, and sends the specific physical downlink control channel to the user equipment set, so that the user equipment Any user equipment in the set can obtain information about whether the user is scheduled according to the indication information, so as to determine whether to perform a subsequent physical downlink control channel blind detection operation, and avoid generating additional physical downlink control channel blind detection. Therefore, the embodiment of the present invention can effectively reduce the number of times that the user equipment performs blind detection of the physical downlink control channel, improve the efficiency of blind detection of the physical downlink control channel, and reduce the consumption of the battery power.
  • the indication information carried by the specific physical downlink control channel of the embodiment of the present invention includes information about whether multiple user equipments are scheduled, so that the signaling overhead of the specific physical downlink control channel can be effectively reduced.
  • the network side device includes but is not limited to a base station (base station); the user equipment includes but is not limited to a mobile phone, a portable computer, a personal digital assistant (PDA), a portable game machine, and a portable multimedia machine; the user equipment set includes at least two user equipments. .
  • each user equipment can read and identify the indication information in a specific physical downlink control channel through configuration of RRC signaling or other signaling.
  • the specific physical downlink control channel generated by the network side device may be directed to all user equipments in an active state, or may be directed to all user equipments in the active user equipment, to be monitored and used by the user equipment.
  • the specific physical downlink control channel is directed to a specific user equipment, and the indication information carried by the specific physical downlink control channel indicates whether the specific user equipment is scheduled, thereby further reducing the overhead caused by the specific physical downlink control channel.
  • These specific user equipments may be selected according to the hardware capabilities of the user equipment, the number of carriers monitored, the service rate, the discontinuous reception ("DRX") period, the starting point related factors or other factors, and any combination of these factors. .
  • the specific multiple UEs may be UEs with lower hardware capabilities, or UEs with a larger number of carriers, or UEs with higher traffic rates, or UEs with similar aspects or aspects.
  • the specific PDCCH in the embodiment of the present invention is only for a specific UE in the UE in the active state, so that the overhead caused by the specific PDCCH can be further reduced.
  • the same group of UEs as the starting point because the UE in the DRX periodically wakes up to detect the PDCCH, and the UE in the dormant state does not detect the PDCCH, so grouping the UEs with the same DRX cycle and the starting point can improve the specificity. PDCCH utilization efficiency.
  • the network side device sends a specific PDCCH to the user equipment set formed by the at least two user equipments, regardless of whether the user equipments are scheduled by the network side equipment.
  • the network side device may retain the indication information of the user equipment in a specific physical downlink control channel, so that the user equipment can continue to monitor the specific after waking up from the DRX state.
  • the physical downlink control channel is used to obtain the indication information that is scheduled.
  • the network side device may also delete the indication information of whether the user equipment is scheduled in the specific physical downlink control channel, that is, the specific PDCCH does not carry the user entering the DRX state. Whether the device is scheduled to be instructed, and the user equipment does not need to monitor the specific PDCCH channel. In this case, the specific PDCCH may consider indicating whether other user equipments are scheduled.
  • the network side device may periodically or aperiodically send a specific PDCCH to a set of user equipment formed by at least two user equipments. For example, if the network side device periodically sends a specific PDCCH, the user equipment needs to periodically detect the specific PDCCH. When the next period does not come, the user equipment performs physical downlink control according to the indication information of the specific PDCCH bearer in the current period. Channel blind detection; if the network side device sends a specific PDCCH non-periodically, the user equipment needs to detect the specific PDCCH every subframe.
  • the network side device periodically sends a specific to the user equipment set.
  • the PDCCH where the network side device can flexibly configure a period for transmitting a specific PDCCH, specifically, the smallest unit of the transmission period is one subframe. Therefore, the indication information of the specific PDCCH may be used to indicate whether each user equipment is scheduled in the period, and specifically includes the following two methods.
  • a sub-frame if a user equipment is not scheduled in any of the N subframes, including any uplink and downlink initial transmission data and/or retransmission data of the user equipment, the user equipment carried by the specific PDCCH generated by the network side device
  • the indication information is not scheduled, and accordingly, the user equipment does not need to perform blind detection of the physical downlink control channel on the subframes; if a user equipment is scheduled in at least one subframe in the N subframes, Then, the indication information of the user equipment that is carried by the specific PDCCH is scheduled, and accordingly, the user equipment needs to perform blind detection of the physical downlink control channel according to the indication information on the subframes.
  • Method 2 Suppose the period is N subframes, if some The user equipments are not scheduled in the N subframes, and the indication information of the user equipment carried by the specific PDCCH is not scheduled. However, if the user equipment has data transmission, physical processing on the carrier with data transmission is also required. When the downlink control channel is blindly detected, the user equipment needs to perform blind detection of the physical downlink control channel on the carrier with data transmission. Specifically, when the user equipment feeds back the data transmission in the uplink but does not correctly confirm the information or sends the uplink on the uplink. After the data, the user equipment needs to perform blind detection of the physical downlink control channel in a subframe that meets its downlink or uplink data retransmission timing.
  • the user equipment does not need to perform on the subframes.
  • the blind detection of the physical downlink control channel if a user equipment is scheduled in at least one subframe in the N subframes, the indication information of the user equipment carried by the specific PDCCH is scheduled, and accordingly, the user equipment needs to be
  • the blindness of the physical downlink control channel is performed according to the indication information on the subframes. Detection.
  • the network side device can further reduce the overhead caused by a specific PDCCH by adopting a periodic transmission manner.
  • the user equipment set when there are many user equipments in the user equipment set, the user equipment set may be grouped for processing, or may not be grouped.
  • the information transmitting method of the present invention may further include:
  • the step of generating a specific physical downlink control channel includes:
  • the specific physical downlink control channel is generated for each group of user equipments, where the specific physical downlink control channel carries indication information indicating whether the user equipment in the user equipment group is scheduled, and
  • the step of sending the specific physical downlink control channel to the user equipment set may include: S121, periodically sending the specific physical downlink control channel generated for each group of user equipments to each group of user equipments.
  • the user equipment set formed by the at least two user equipments may be divided into several groups, and each PDCCH generated by the network side equipment carries indication information indicating whether the user equipment of each group is scheduled, and the network The side device may periodically send a specific PDCCH to each group of user equipments, and the periods of the transmission may be the same or different, so that the UEs in each group may periodically monitor the specific PDCCH according to the period in which the group is configured.
  • the specific PDCCHs when there are multiple specific PDCCHs corresponding to multiple groups of user equipments, the specific PDCCHs may be separately transmitted in one subframe; or the indication information carried by the specific PDCCHs may be the same.
  • the instructions of the users are bound and sent.
  • the specific PDCCH includes the same number of user equipments and the format of the indication information indicating each user equipment is also the same.
  • the binding of two user equipment indication information having the same scheduling situation in two specific PDCCHs is taken as an example.
  • the network side device needs to send a bearer indication.
  • the network side device sends a specific PDCCH carrying indication information indicating that the two binding user equipments are not scheduled, and accordingly, the two user equipments do not need to perform physical downlink control channel blind detection according to the indication information. And so on, the same is true for the case of binding more than two user equipment indication information.
  • the indication information carried by the specific physical downlink control channel may include multiple sub-instruction information, where one sub-instruction information may be used to indicate whether one user equipment in the user equipment set is scheduled. Or a sub-instruction information may be used to indicate whether at least two user equipments in the user equipment set are scheduled, so that the overhead caused by the specific PDCCH may also be further reduced.
  • the specific PDCCH of the embodiment of the present invention may be generated by binding multiple UEs. The principle of binding the UE may be to bind UEs that may be scheduled at the same time as much as possible, or The UEs with the same number of monitored carriers are bound together.
  • the indication information carried by the specific physical downlink control channel generated by the network side device may only indicate whether the user equipment is scheduled on one of the carriers monitored by the user equipment. That is, for the specific physical downlink control channel, each carrier has a specific PDCCH for all UEs in an active state or some UEs in an active state that may be scheduled to be on this carrier for monitoring and use.
  • the user equipment only monitors one carrier, the user equipment only needs to detect a specific physical downlink control channel on the carrier; when the user equipment needs to monitor multiple carriers, the user equipment needs to separately detect the specific carrier on the multiple carriers. Physical downlink control channel.
  • the network side device does not require the network side device to additionally notify the UE of the detection behavior, and each UE only needs to detect the corresponding specific physical downlink control channel on the monitored carrier.
  • the indication information carried by the specific physical downlink control channel includes not only whether the carrier is scheduled, but also other information for blind detection of the physical downlink control channel, such as a control channel format, or the like, and reading and identifying for the UE.
  • the network side device further needs to notify the RRC signaling or other physical layer signaling.
  • the indication information carried by the specific physical downlink control channel generated by the network side device may indicate whether the user equipment is scheduled on a carrier group formed by all carriers monitored by the user equipment. That is, all carriers that the user equipment may need to monitor are in a specific
  • the specific PDCCH carrying the indication information of whether the user equipment is scheduled on the carrier group can be placed on a certain carrier, such as a UE-specific primary carrier.
  • the indication information of the specific physical downlink control channel may indicate whether the user equipment is scheduled on the carrier group in multiple manners.
  • a preferred way is to use the method indicated by each carrier separately, that is, to indicate whether the user equipment is scheduled by the network side device on each carrier of the carrier group.
  • the user equipment monitors two carriers.
  • each carrier can use 1 bit to indicate whether the user equipment is scheduled on each monitored carrier.
  • the number of bits required for the indication information is equal to the number of carriers. That is 2 bits.
  • Another preferred method is to indicate, by means of the binding indication, whether the user equipment is scheduled by the network side device on all carriers of the carrier group, that is, the information of multiple carriers of the UE are bound together to indicate the user. Whether the device is scheduled on these carriers. For example, if the UE monitors two carriers, it only needs 1 bit to indicate whether the UE is scheduled on the two carriers, specifically indicating that the user equipment is not scheduled on the two carriers or in the two carriers. In the case where at least one carrier is scheduled, in the latter case, regardless of which carrier the UE is scheduled on or on both carriers, the user equipment still needs to perform physical downlink control on both carriers. Blind detection of the channel.
  • the network side device generates the foregoing physical downlink control channel, and the indication information carried by the specific physical downlink control channel only indicates whether the user equipment is scheduled on one of the carriers monitored by the user equipment, or the indication information indicates Whether the user equipment is scheduled on the carrier group formed by all the carriers monitored by the user equipment, not only can avoid the additional physical downlink control channel blind detection, reduce the number of physical downlink control channel blind detection, and further reduce the specific PDCCH overhead.
  • the signaling length of the specific physical downlink control channel generated by the network side device is the same as the signaling length of the physical downlink control channel in the existing communication system, that is, the specific physical downlink control channel.
  • the format is the same as one of multiple formats of the physical downlink control channel in the communication system, and the signaling lengths of different specific physical downlink control channels may be the same or different.
  • the format of the specific PDCCH can also be designed separately.
  • the specific PDCCH may also be configured to semi-statically configure one or more of the plurality of formats by using RRC signaling, and Moreover, the specific PDCCH can be distinguished by using different ⁇ ⁇ codes, because the specific PDCCH is used by multiple users, so the scrambling code is preferably a scrambling code known by a plurality of users, and the scrambling code can also be A specific scrambling code for a carrier or carrier group. Since a specific PDCCH uses a relatively fixed signaling length, the number of blind detections of the PDCCH can be reduced, thereby reducing the probability of false alarms.
  • the location of the specific physical downlink control channel generated by the network side device is fixed or a known location that can be calculated by each user equipment.
  • the location of the specific PDCCH may be a certain known location calculated by the user equipment by using the above-mentioned well-known scrambling code, the carrier/carrier group-specific scrambling code and/or the subframe number, etc.; the specific PDCCH may also be Placed in a relatively fixed space, which is a space known to all UEs indicated by a specific PDCCH. These UEs can perform blind detection in this space, for example, the location of the specific PDCCH can be placed in the existing Public search space or other newly defined search space. Similarly, since the location of the specific PDCCH is relatively fixed, the number of blind detections of the PDCCH can be reduced, thereby reducing the probability of false alarms.
  • the indication information that is used by the specific PDCCH to reduce the blind detection of the UE may include two situations.
  • the indication information includes only information about whether the UE is scheduled on the monitored carrier, and more preferred.
  • the indication information may include other information further reducing blind detection, such as a specific control channel format, a CCE aggregation level, etc., in addition to information including whether the UE is scheduled on the monitored carrier.
  • the indication information carried by the specific PDCCH only includes information about whether the UE is scheduled on the monitored carrier, and the specific configuration is as follows:
  • the indication information may indicate, for each UE, whether the UE is scheduled on the carriers by using 1 bit;
  • the indication information is used in the manner indicated separately, multiple bits need to be set, and the number of bits of the indication information can be determined in two ways: The first type is determined according to the maximum number of carriers monitored by the UE, as monitored by the UE. The maximum number of carriers is 3, then the indication information needs 3 for each UE. Bit, at this time, for the UE whose number of monitored carriers is less than 3, the remaining bits may further indicate other information including the control channel format, or serve as a virtual CRC bit; the second is to follow the carrier monitored by a certain UE.
  • the number of bits is determined, for example, according to the number of 3 carriers.
  • the remaining bits may further indicate additional information including the control channel format, or be used as a virtual CRC bit.
  • the indication information may include other information for further reducing blind detection, such as a specific control channel format, in addition to information about whether the UE is scheduled on the monitored carrier, and the remaining bits may also be used.
  • the virtual CRC bit is specifically constructed as follows:
  • a specific PDCCH carrying indication information indicating whether each user equipment is scheduled on a single carrier It can be divided into two indication manners, and the first one is a joint indication manner of the same number of bits, for example, each The UE uses two bits to indicate four states, where "00" can be used to indicate that it is not scheduled, and the other three states indicate other information for reducing blind detection, such as control channel format; the second is different bit numbers.
  • Cascade indication mode but need to set a maximum number of bits, for example, the maximum number of bits is 2, then the first bit can be used to indicate whether the UE is scheduled or not, such as 0 means not scheduled, 1 means scheduled, if the UE detects When the first bit is 0, the blind detection is stopped. If the UE detects 1, it indicates that N-1 (N is the maximum number of bits) bits (in this example, 1 bit) is still used by the UE to Carrying a specific control channel format, etc., the remaining bits can also be used as virtual CRC bits.
  • the second is when the binding indication mode is adopted and multiple carrier control channel formats are different, and it is still assumed that the UE monitors two carriers, and 3 bit information is needed, and the first bit indicates that the UE is Scheduling or not, the remaining two pieces of bit information respectively indicate the control channel format used by the two carriers;
  • the third is that when the separately indicated mode and the multiple carrier control channel formats are the same, two carriers are assumed, Three bits of information are needed, two bits are used to indicate whether the UE is scheduled on multiple carriers, and the last bit information is used to indicate specific System channel format information.
  • the method for transmitting blind detection can effectively avoid additional
  • the blind detection reduces the number of blind detections of user equipment, improves the efficiency of blind detection, reduces battery power consumption, and reduces signaling overhead.
  • An embodiment of the present invention further provides an information receiving method. As shown in FIG. 3, the information receiving method includes:
  • S220 Determine, according to the indication information, whether to perform blind detection of the physical downlink control channel.
  • the specific physical downlink control channel received by the user equipment carries the indication information indicating whether the user equipment is scheduled. Therefore, the user equipment can first obtain information about whether the user equipment is scheduled according to the indication information, so as to determine whether to perform the subsequent physical downlink control channel.
  • the blind detection operation avoids the additional blind detection of the physical downlink control channel, thereby enabling the present invention to effectively reduce the number of times the user equipment performs blind detection and improve the efficiency of blind detection.
  • the indication information carried by the specific physical downlink control channel of the embodiment of the present invention includes information about whether multiple user equipments are scheduled, so that the signaling overhead of the specific physical downlink control channel can be effectively reduced.
  • the user equipment may perform verification on a specific physical downlink control channel according to a specific information length and/or a known location, and acquire whether the UE is scheduled to perform a physical downlink control channel. Test to reduce the probability of false alarms.
  • the determining whether to perform the physical downlink control channel blind detection according to the indication information may include: when determining that the indication information indicates that the user equipment is scheduled, performing blind detection of the physical downlink control channel according to the indication information.
  • Determining whether to perform the physical downlink control channel blind detection according to the indication information may further include: when determining that the indication information indicates that the user equipment is not scheduled, performing physical downlink control channel blind detection according to the indication information.
  • Determining whether to perform the physical downlink control channel blind detection according to the indication information may further include: when determining that the indication information indicates that the user equipment is not scheduled, if the user equipment has data transmission, performing a physical downlink control channel according to the indication information Blind detection, if the user equipment does not have data transmission, the physical downlink control channel blind detection is not performed. Therefore, it is possible to avoid additional blind detection of physical downlink control information, thereby reducing the number of blind detection of the physical downlink control channel, and improving the efficiency of blind detection of the physical downlink control channel.
  • the receiving a specific physical downlink control signal from a network side device After the channel the information receiving method further includes: when the received signaling length of the specific physical downlink control channel is the same as one of the signaling lengths of the physical downlink control channel in the existing communication system, using the user equipment.
  • the well-known known scrambling code is aggregated or the specific physical downlink control channel is identified using a carrier-specific specific scrambling code monitored for each user equipment.
  • the information receiving method may further include: when the indication information of the specific physical downlink control channel bearer is not detected, all the monitored The physical downlink control channel is blindly detected on the carrier. For example, if the user equipment does not detect the indication information indicating whether the user equipment is scheduled, that is, the indication information is lost, the user equipment may select to perform blind detection on all monitored carriers, or may not continue blind detection, or Blind detection is performed only on one or several carriers. In this case, when the user equipment periodically receives a specific PDCCH, it is preferred that the user equipment performs blind detection on all of the monitored carriers.
  • the detection period of the user equipment is determined, and the probability that the user equipment does not detect the indication information is small, there is not much blind detection caused by the blind detection of all the monitored carriers once the user equipment loses the indication information. It also avoids losing the indicated physical downlink control channel.
  • the indication information is lost, when the user equipment receives the specific PDCCH aperiodically, it is preferable that the user equipment does not continue to perform blind detection, or performs blind detection only on one or several carriers. At this time, since the user equipment cannot know the specific time of the specific PDCCH transmission, each subframe needs to detect a specific PDCCH.
  • the user equipment cannot distinguish whether the network side device does not send the specific PDCCH or The specific PDCCH is not detected, therefore, it is preferred that the user equipment does not continue to perform blind detection, or only blind detection on one or several carriers.
  • the user equipment performs blind control of the control channel on all of the monitored carriers. Even if the user equipment performs blind control of the control channel on all the monitored carriers in this case, since the probability that the user equipment does not detect the indication information is small, most user equipments can determine whether to perform blind detection according to the indication information, thereby avoiding generation. Additional blind detection, thereby effectively reducing the number of blind detections of the physical downlink control channel and improving the efficiency of blind detection of the physical downlink control channel
  • the embodiment of the present invention further provides a network side device 100.
  • the network side device 100 includes a generating module 110 and a sending module 120, where the generating module 110 is configured to generate a specific physical downlink control channel, where the specific The physical downlink control channel carries indication information indicating whether the user equipment in the user equipment set is scheduled, where the user equipment set includes at least two user settings.
  • the sending module 120 is configured to send the specific physical downlink control channel to the user equipment set.
  • the specific physical downlink control channel generated by the generating module 110 carries the indication information indicating whether the user equipment is scheduled, and is sent to the user equipment by the sending module 120, so that the user equipment can obtain information about whether the user equipment is scheduled according to the indication information.
  • the indication information of the specific physical downlink control channel bearer generated by the generating module 110 includes information about whether multiple user equipments are scheduled, so that the signaling overhead of the specific physical downlink control channel can be effectively reduced.
  • the network side device may further include: a grouping module 111, configured to divide the user equipment set into a plurality of user equipment groups, and the generating module 110 may include a first generating unit 112, where the first generating unit The 112 is configured to generate a specific physical downlink control channel for each group of user equipment, where the specific physical downlink control channel carries indication information indicating whether the user equipment in the user equipment group is scheduled, and the sending module 120 is configured to periodically send each The group user equipment transmits a specific physical downlink control channel generated for each group of user equipment.
  • the network side device 100 can further reduce the overhead caused by the specific PDCCH by grouping the user equipment set and periodically transmitting a specific physical downlink control channel for each group of user equipment.
  • the generating module 110 may further include: one of the first generating unit 112, the second generating unit 113, the third generating unit 114, and the fourth generating unit 115, or any combination thereof.
  • the second generating unit 113 is configured to generate a specific physical downlink control channel, where the indication information carried by the specific physical downlink control channel includes multiple sub-instruction information, where one sub-instruction information may be used to indicate one user equipment in the user equipment set. Whether it is scheduled, or a sub-indication information can also be used to indicate whether at least two user equipments in the set of user equipment are scheduled.
  • the network side equipment 100 When a sub-instruction information is used to indicate whether at least two user equipments in the user equipment set are scheduled, the network side equipment 100 generates a specific PDCCH according to an embodiment of the present invention by binding multiple UEs, and can further reduce the specific PDCCH. The cost of bringing.
  • the third generating unit 114 is configured to generate a specific physical downlink control channel that carries indication information indicating whether the user equipment is scheduled on one of the carriers monitored by the user equipment.
  • the fourth generating unit 115 is configured to generate a specific physical downlink control channel that carries indication information indicating whether the user equipment is scheduled on a carrier group formed by all carriers monitored by the user equipment. In the foregoing manner, the network side device 100 can avoid generating additional physical downlink control channel blind detection, reduce the number of times of physical downlink control channel blind detection, and further reduce specific PDCCH overhead.
  • the location of the specific physical downlink control channel generated by the generating module 110 may be fixed, and the determined location of each user equipment can be calculated; the specific physical downlink generated by the generating module 110
  • the signaling length of the control channel may be the same as the signaling length of one of the physical downlink control channels in the existing system, and the signaling lengths of different specific physical downlink control channels may be the same or different.
  • the embodiment of the present invention further provides a user equipment 200.
  • the user equipment 200 includes a receiving module 210 and a determining module 220, where the receiving module 210 is configured to receive a specific physical downlink control channel from the network side device.
  • the specific physical downlink control channel carries indication information indicating whether the user equipment in the user equipment set is scheduled, where the user equipment set includes at least two user equipments; the determining module 220 is configured to determine, according to the indication information, whether to perform a physical downlink control channel. Blind detection.
  • the user equipment can first obtain the information of whether the user is scheduled according to the indication information, so that the additional control channel blind detection can be avoided, thereby effectively reducing the number of times the user equipment performs the blind detection of the physical downlink control channel, and improving the physical downlink control.
  • Channel blind detection efficiency reduces battery power consumption and can effectively reduce the signaling overhead of the physical downlink control channel.
  • the user equipment may also periodically or aperiodically receive the specific PDCCH sent by the network side device to the user equipment set. Specifically, if the network side device periodically sends a specific PDCCH, the user equipment needs to periodically detect the specific PDCCH. If the next period does not come, the user equipment may according to the indication information of the specific PDCCH carried in the current period. Control channel blind detection is performed; if a specific PDCCH is missed, the user equipment can perform blind detection on all monitored carriers.
  • the network side device sends a specific PDCCH non-periodically, the user equipment needs to detect a specific PDCCH every subframe; if a specific PDCCH is not sent or missed, the user equipment can receive according to the latest one.
  • the indication information carried in the specific PDCCH is subjected to blind detection of the control channel.
  • the indication information carried by the specific physical downlink control channel generated by the network side device when the indication information carried by the specific physical downlink control channel generated by the network side device only indicates whether the user equipment is scheduled on one of the carriers monitored by the user equipment, the user equipment needs to be A specific PDCCH is detected on each of the monitored carriers, and then it is determined whether to perform subsequent blind detection of the physical downlink control channel.
  • the network side device When the network side device generates a special
  • the indication information carried by the physical downlink control channel indicates whether the user equipment is scheduled on the carrier group formed by all carriers monitored by the user equipment, the user equipment only needs to be on a specific carrier that it monitors, such as a user.
  • the device-specific primary carrier detects a specific PDCCH, and then determines whether to perform subsequent physical downlink control channel blind detection according to the indication information of the specific PDCCH.
  • the determining module 220 may include:
  • the first processing unit 221 is configured to perform blind detection of the physical downlink control channel according to the indication information when determining that the indication information indicates that the user equipment is scheduled or when determining that the indication information indicates that the user equipment is not scheduled but the user equipment has data transmission ; and / or
  • the second processing unit 222 is configured to perform blind detection of the physical downlink control channel when determining that the indication information indicates that the user equipment is not scheduled and the user equipment does not have data transmission.
  • the first processing unit 221 determines that the indication information of the specific PDCCH received by the receiving module 210 indicates that the user equipment is scheduled, the first processing unit 221 performs physical downlink control channel blind detection according to the indication information.
  • the first processing unit 221 determines that the indication information indicates that the user equipment is not scheduled but the user equipment has data transmission, the first processing unit 221 performs physical downlink control channel blind detection according to the indication information.
  • the second processing unit 222 determines that the indication information indicates that the user equipment is not scheduled and the user equipment has no data transmission, the second processing unit 222 does not perform physical downlink control channel blind detection. Therefore, it is possible to avoid the additional blind detection of the physical downlink control information, thereby reducing the number of blind detection of the physical downlink control channel, and improving the efficiency of the blind detection of the physical downlink control channel.
  • the user equipment may further include a third processing module 223, configured to perform physical downlink control on all monitored carriers when the indication information carried by the specific physical downlink control channel is not detected.
  • Channel blind detection For example, if the user equipment 200 does not detect the indication information indicating whether the user equipment is scheduled, the third processing module 223 may select to perform blind detection on all monitored carriers, or may not continue blind detection, or only Blind detection on one or several carriers. Preferably, in this case, the third processing module 223 performs blind control of the control channel on all of the monitored carriers.
  • the user equipment may further include an identification module 230, where the identification module 230 is configured to receive, at the receiving module 210, a signaling length and one of signaling of a physical downlink control channel in an existing communication system.
  • the identification module 230 is configured to receive, at the receiving module 210, a signaling length and one of signaling of a physical downlink control channel in an existing communication system.
  • a specific physical downlink control channel of the same length is used, a well-known scrambling code known from the user equipment set or a carrier-specific specific scrambling code monitored for each user equipment is used. Identify a specific physical downlink control channel.
  • the storage medium may be: ROM/RAM, magnetic disk, optical disk, or the like.

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Description

信息发射与接收的方法和设备 技术领域
本发明涉及通信领域, 尤其涉及通信领域中盲检测的方法和设备。 背景技术
在目前的通信系统中, 基站 (NodeB ) 与用户设备 ( User Equipment, 简称 "UE" )通常只在一个载波上进行通信。 根据 UE与基站业务连接的状 态可以将 UE分为激活态和空闲态, 对于激活态的 UE, 在每个子帧内, 基 站根据 UE的业务速率需求及一定的调度算法等综合决定是否调度这个激活 态的 UE。
在通信系统中, 釆用物理下行控制信道 ( Physical Downlink Control Channel, 筒称 "PDCCH" )承载 UE的调度指配信令, 用于指示 UE的物理 数据信道的时频资源分配信息、 调制编码方式等。 其中, 物理数据信道包括 物理下行共享信道(Physical Downlink Shared Channel, 简称 " PDSCH" )和 物理上行共享信道( Physical Uplink Shared Channel , 简称 "PUSCH" )。 搜 索空间是根据控制信道单元 ( Control Channel Element, 简称 "CCE" ) 定义 的一段连续的资源, 可以分为公共搜索空间和 UE特定搜索空间。 对于物理 下行控制信道可以采用四种 CCE聚合等级, 分别为 1、 2、 4和 8 等级。
UE 利用自身特定的扰码在其既定的搜索空间中, 包括公共搜索空间和
UE特定的搜索空间, 对物理下行控制信道任何一种传输可能性进行接收、 盲检测操作, 其中传输的可能性包括各种可能的物理下行控制信道信息长度 以及四种 CCE聚合等级。 UE用循环冗余校验 ( Cyclical Redundancy Check, 简称 "CRC" ) 来校验并确定自己的物理下行控制信道, 进而解析其中的信 息确定基站调度的信道, 包括数据的传输方式、 调制编码方式和占用的时频 资源信息等, 从而进行下行数据的接收检测或是上行数据的发送。
当 UE较长时间一直处于激活态但该 UE的上下行业务始终没有被基站 调度到时, UE仍需要在每个子帧中检测自己的 PDCCH信道, 以具体确定 是否被基站调度, 这样给 UE带来了大量的电池电量的消耗。 在演进的通信 系统中需要支持更宽的带宽, 一种可能的支持更宽带宽的方式是多个载波进 行聚合, 即通过将多个载波的资源同时调度给一个用户使用, 以满足更高的 峰值速率和业务需求。 对于这些分配了多个载波的 UE, 其控制信道的设计 可以分为分别编码 PDCCH和联合编码 PDCCH。 然而无论釆用哪种 PDCCH 编码方式, UE检测物理下行控制信道带来的盲检测的次数都会明显增加, 这会对 UE功耗造成不利影响。
现有技术中系统利用半静态无线资源控制 ( Radio Resource Control, 简 称 "RRC" )信令或动态的物理层信令通知 UE在某一段时间内需要监测的 载波, 当 UE 处于激活态且非不连续接收 (Discontinuous Receive , 简称 "DRX" )状态时, 这个 UE需要在这些载波上并行进行 PDCCH盲检测。
但上述方案具有如下两方面的缺陷:
( 1 ) UE进行盲检测的次数随着所监测的载波数增加而显著增长;
( 2 )对于某个子帧内没有被调度的 UE 或者只在部分载波上被调度的 UE, UE还是需要在所有需要监测的载波上进行 PDCCH盲检测, 因此还会 带来额外的盲检测, 导致盲检测效率变低, 电池电量消耗变大。
因此, 在目前的通信系统中, 如何减少 UE进行物理下行控制信道盲检 测的次数是通信领域中急需解决的重要问题。 发明内容
为此, 本发明实施例要解决的技术问题是提供信息发射与接收的方法和 设备, 以降低用户设备物理下行控制信道盲检测的次数, 提高物理下行控制 信道盲检测的效率并减少电池电量的消耗。
为解决上述技术问题, 本发明实施例提供了一种信息发射方法, 包括: 生成特定物理下行控制信道, 所述特定物理下行控制信道承载指示用户 设备集合中的用户设备是否被调度的指示信息, 其中所述用户设备集合包括 至少两个用户设备; 以及
向所述用户设备集合发送所述特定物理下行控制信道。。
本发明实施例还提供了一种信息接收方法, 包括:
接收来自网络侧设备的特定物理下行控制信道, 所述特定物理下行控制 信道承载指示用户设备集合中的用户设备是否被调度的指示信息, 其中所述 用户设备集合包括至少两个用户设备; 以及
根据所述指示信息确定是否进行物理下行控制信道盲检测。
本发明实施例还提供了一种网络侧设备, 包括: 生成模块, 用于生成特定物理下行控制信道, 所述特定物理下行控制信 道承载指示用户设备集合中的用户设备是否被调度的指示信息, 其中所述用 户设备集合包括至少两个用户设备; 以及
发送模块, 用于向所述用户设备集合发送所述特定物理下行控制信道。 本发明实施例还提供了一种用户设备, 包括:
接收模块, 用于接收来自网络侧设备的特定物理下行控制信道, 所述特 定物理下行控制信道承载指示用户设备集合中的用户设备是否被调度的指 示信息, 其中所述用户设备集合包括至少两个用户设备; 以及
确定模块, 用于根据所述指示信息确定是否进行物理下行控制信道盲检 测。
基于上述技术方案, 由于本发明实施例中的特定物理下行控制信道承载 了指示用户设备是否被调度的指示信息, 因而用户设备根据该指示信息能够 确定是否进行物理下行控制信道盲检测,从而避免了用户设备进行额外的物 理下行控制信道盲检测。 因此, 本发明实施例提供的方法和设备能够有效地 减少用户设备进行物理下行控制信道盲检测的次数,提高物理下行控制信道 盲检测的效率, 并减少电池电量的消耗。 附图说明
图 1是根据本发明实施例的信息发射方法的流程图;
图 2是根据本发明实施例的信息发射方法的另一流程图;
图 3是根据本发明实施例的信息接收方法的流程图;
图 4是根据本发明实施例的信息接收方法的另一流程图;
图 5是根据本发明实施例的网络侧设备的示意图;
图 6是根据本发明实施例的网络侧设备的另一示意图;
图 7是根据本发明实施例的用户设备的示意图; 以及
图 8是根据本发明实施例的用户设备的另一示意图。 具体实施方式
为了便于本领域普通技术人员理解和实现本发明, 现结合附图和具体实 施例来阐述本发明。
如图 1所示, 本发明实施例提供了一种信息发射方法, 包括: S110, 生成特定物理下行控制信道, 所述特定物理下行控制信道承载指 示用户设备集合中的用户设备是否被调度的指示信息, 其中所述用户设备集 合包括至少两个用户设备; 以及
S120, 向该用户设备集合发送该特定物理下行控制信道。
本发明实施例通过使网络侧设备生成特定物理下行控制信道, 该特定物 理下行控制信道承载指示用户设备集合是否被调度的指示信息, 并向用户设 备集合发送该特定物理下行控制信道, 使得用户设备集合中的任一用户设备 能够根据该指示信息获取自己是否被调度的信息,从而可以确定是否进行后 续的物理下行控制信道盲检测操作,避免产生额外的物理下行控制信道盲检 测。 因此, 本发明实施例能够有效地减少用户设备进行物理下行控制信道盲 检测的次数, 提高物理下行控制信道盲检测的效率, 并能够减少电池电量的 消耗。 另一方面, 本发明实施例的特定物理下行控制信道承载的指示信息包 括了多个用户设备是否被调度的信息, 从而能够有效地降低特定物理下行控 制信道的信令开销
其中, 网络侧设备包括但不限于基站 (基站); 用户设备包括但不限于 移动电话、 便携式计算机、 个人数字助理 (PDA )、 便携式游戏机和便携式 多媒体机; 用户设备集合包括至少两个用户设备。 此外, 每个用户设备可以 通过 RRC信令或其它信令的配置来读取和识别特定物理下行控制信道中的 指示信息。
在本发明实施例中 , 网络侧设备生成的特定物理下行控制信道可以面向 所有处于激活态的用户设备, 也可以面向所有处于激活态的用户设备中的部 分用户设备, 以被用户设备监测和使用。 优选地, 该特定物理下行控制信道 面向特定的用户设备, 该特定物理下行控制信道承载的指示信息指示特定用 户设备是否被调度, 由此能够进一步降低该特定物理下行控制信道带来的开 销。 这些特定用户设备可以根据用户设备的硬件能力、 监测的载波数、 业务 速率、 不连续接收(Discontinuous Receive, 简称 "DRX" )周期、 起点相关 的因素或其他因素以及这些因素的任意组合来进行选择。 例如, 这些特定的 多个 UE可以是硬件能力较低的 UE , 或检测载波数量较大的 UE, 或业务速 率较高的 UE, 或包括的某一方面或多个方面因素近似相同的 UE。 由于本发 明实施例中的特定 PDCCH仅针对处于激活态的 UE中部分特定的 UE ,从而 能够进一步降低该特定 PDCCH带来的开销。 另外, 还可以选取 DR 周期 和起点相同的一组 UE, 因为处于 DRX的 UE会周期性地醒来检测 PDCCH, 而在休眠状态下的 UE不会检测 PDCCH, 所以将 DRX周期和起点相同的 UE分为一组可以提高特定 PDCCH的利用效率。
在本发明实施例中, 网络侧设备向至少两个用户设备形成的用户设备集 合发送特定 PDCCH, 而不论这些用户设备是否被网络侧设备调度。 但是当 用户设备集合中的某个用户设备处于 DR 状态时, 网络侧设备可以在特定 物理下行控制信道中保留该用户设备的指示信息,以方便该用户设备从 DRX 状态醒来之后可以继续监测特定物理下行控制信道,从而获得是否被调度的 指示信息; 网络侧设备也可以在特定物理下行控制信道中删除该用户设备是 否被调度的指示信息, 即该特定 PDCCH不再承载这个进入 DRX状态的用 户设备的是否被调度的指示信息, 同时这个用户设备也不需要再对这个特定 PDCCH信道进行监测, 此时特定 PDCCH可以考虑增加其它用户设备是否 被调度的指示信息。
在本发明实施例中 , 网络侧设备可以周期地或非周期地向由至少两个用 户设备形成的用户设备集合发送特定 PDCCH。 例如, 如果网络侧设备周期 性地发送特定 PDCCH, 则用户设备需要周期性地检测该特定 PDCCH, 在下 一个周期没有到来时, 用户设备会根据本周期内的特定 PDCCH承载的指示 信息进行物理下行控制信道盲检测; 如果网络侧设备非周期性地发送特定 PDCCH, 则用户设备每一子帧都需要检测该特定 PDCCH。
在本发明实施例中, 网络侧设备周期性地向用户设备集合发送特定
PDCCH, 其中, 网络侧设备可以灵活地配置发送特定 PDCCH的周期, 具体 地发送周期的最小单元是一个子帧。 由此, 该特定 PDCCH承载的指示信息 可以表示这个周期内每个用户设备是否被调度的信息, 具体地可以包括下面 两种方法, 方法一: 假设网络侧设备周期性发送特定 PDCCH的周期是 N个 子帧, 如果某个用户设备在 N个子帧内都没有被调度, 包括该用户设备的任 何上下行的初始传输数据和 /或重传数据, 那么网络侧设备生成的特定 PDCCH承载的该用户设备的指示信息为不被调度, 相应地, 该用户设备不 需要在这些子帧上进行物理下行控制信道的盲检测; 如果某个用户设备在 N 个子帧内的至少一个子帧中会被调度, 那么特定 PDCCH承载的该用户设备 的指示信息为被调度, 相应地, 该用户设备需要在这些子帧上根据指示信息 进行物理下行控制信道的盲检测。 方法二: 假设该周期是 N个子帧, 如果某 个用户设备在 N个子帧内都没有被调度,那么特定 PDCCH承载的该用户设 备的指示信息为不被调度, 但是, 如果该用户设备具有数据传输, 也需要在 具有数据传输的载波上进行物理下行控制信道盲检测时, 则用户设备需要在 具有数据传输的载波上进行物理下行控制信道盲检测, 具体地, 当该用户设 备在上行反馈了数据传输但未正确确认信息或在上行发送了上行数据后, 该 用户设备需要在满足其下行或上行数据重传定时的子帧内进行物理下行控 制信道的盲检测; 如果该用户设备没有数据传输, 则该用户设备不需要在这 些子帧上进行物理下行控制信道的盲检测;如果某个用户设备在 N个子帧内 的至少一个子帧中被调度时, 特定 PDCCH承载的该用户设备的指示信息为 被调度, 相应地, 该用户设备需要在这些子帧上根据指示信息进行物理下行 控制信道的盲检测。 网络侧设备通过采用周期性传输的方式, 可以进一步降 低特定 PDCCH带来的开销。
在本发明实施例中, 当用户设备集合中的用户设备 4艮多时, 可以对用户 设备集合进行分组来处理, 当然也可以不分组。 例如, 如图 2所示, 本发明 信息发射方法还可以包括:
5111 , 将用户设备集合分为多个用户设备组; 以及
所述生成特定物理下行控制信道的步骤包括:
5112, 针对每组用户设备生成特定物理下行控制信道, 其中, 该特定物 理下行控制信道承载指示用户设备组中的用户设备是否被调度的指示信息, 以及
所述向所述用户设备集合发送所述特定物理下行控制信道的步骤可以 包括: S 121, 周期性地向每组用户设备发送所述针对每组用户设备生成的特 定物理下行控制信道。
例如, 当用户设备较多时, 可以采用把至少两个用户设备形成的用户设 备集合分成几个组, 网络侧设备生成的每个 PDCCH承载指示每组的用户设 备是否被调度的指示信息, 并且网络侧设备可以周期性地向每组用户设备发 送特定 PDCCH, 发送的周期可以相同, 也可以不同, 由此每个组内的 UE 可以根据其所在组配置的周期, 进行周期性地监测特定 PDCCH。
在本发明实施例中, 在一个子帧内, 当存在对应于多组用户设备的多个 特定 PDCCH时, 可以同时分别发送这些特定 PDCCH; 也可以通过把这些 特定 PDCCH承载的指示信息相同的多个用户的指示信息进行绑定来发送, 尤其针对于多个特定 PDCCH的信令长度相等的情况, 即特定 PDCCH包括 的用户设备数目相同且指示每个用户设备的指示信息的格式也相同。 例如, 将两个特定 PDCCH中的具有相同调度情况的两个用户设备指示信息的绑定 为例, 当两个用户设备中的至少一个用户设备被调度时, 网络侧设备就需要 发送承载指示这两个绑定用户设备均被调度的指示信息的特定 PDCCH, 相 应地这两个用户设备均需要根据指示信息进行物理下行控制信道盲检测; 否 则, 只有当这两个用户设备都不被调度时, 网络侧设备才发送承载指示这两 个绑定用户设备均未被调度的指示信息的特定 PDCCH, 相应地这两个用户 设备根据指示信息都不需要进行物理下行控制信道盲检测。 依此类推, 对于 绑定两个以上的用户设备指示信息的情况也是类似的规则。
优选地, 在本发明实施例中, 特定物理下行控制信道承载的指示信息可 以包括多个子指示信息, 其中, 一个子指示信息可以用于指示所述用户设备 集合中的一个用户设备是否被调度, 或一个子指示信息可以用于指示所述用 户设备集合中的至少两个用户设备是否被调度,从而也可以进一步降低特定 PDCCH带来的开销。 例如, 当用户数较多时, 可以采用绑定多个 UE的方 式来生成本发明实施例的特定 PDCCH, 其中绑定 UE的原则可以是尽量把 可能同时被调度的 UE绑定到一起, 或者是把所监测载波数相近的 UE绑定 到一起。
在本发明实施例中, 网络侧设备生成的特定物理下行控制信道所承载的 指示信息可以仅指示用户设备在该用户设备所监测的载波中的一个载波上 是否被调度。 即对于该特定物理下行控制信道而言, 每个载波都具有一个特 定 PDCCH, 供可能会被调度到这个载波上的处于激活态的所有 UE或处于 激活态的部分 UE来监测和使用。 当用户设备仅监测一个载波时, 该用户设 备仅需要检测这个载波上的特定物理下行控制信道即可; 当用户设备需要监 测多个载波时 , 该用户设备需要在该多个载波上分别检测特定物理下行控制 信道。 此方案不需要网络侧设备来额外通知 UE的检测行为, 每个 UE只需 要在所监测的载波上检测对应的特定物理下行控制信道即可。 特殊地, 当特 定物理下行控制信道承载的指示信息不仅包括这个载波被调度与否,还包括 用于物理下行控制信道盲检测的其它信息时, 如控制信道格式等, 或者对于 UE读取和识别该特定物理下行控制信道的指示信息时, 还需要网络侧设备 通过 RRC信令或者其它物理层信令额外通知。 在本发明另一实施例中, 网络侧设备生成的特定物理下行控制信道所承 载的指示信息可以指示用户设备在由该用户设备所监测的所有载波形成的 载波组上是否被调度。 即把用户设备可能需要监测的所有载波在一个特定
PDCCH 中一起进行指示。 在该实施例中, 承载用户设备在载波组上是否被 调度的指示信息的特定 PDCCH可以放在某一个载波上, 例如 UE特定的主 载波。 上述特定物理下行控制信道的指示信息可以通过多种方式来指示用户 设备在载波组上是否被调度。一种优选的方式是釆用每个载波分别指示的方 式, 即分别指示用户设备在载波组的每个载波上是否被所述网络侧设备调 度。 例如用户设备监测两个载波, 此时每个载波可以单独采用 1比特来指示 用户设备在所监测的每个载波上是否被调度, 则此时该指示信息需要的比特 数目与载波个数相等, 即 2个比特。
另一种优选的方法是指示信息通过绑定指示的方式指示该用户设备在 载波组的所有载波上是否被网络侧设备调度, 即把 UE的多个载波的信息绑 定到一起来指示该用户设备在这些载波上是否被调度。 例如 UE监测两个载 波, 则只需要 1个比特就可以指示 UE在这两个载波上是否被调度, 具体地 表示用户设备在这两个载波上都没有被调度或是在这两个载波中的至少一 个载波上被调度的情况, 对于后一种情况, 无论 UE在哪一个载波上被调度 还是在两个载波上均被调度, 用户设备仍然需要在这两个载波上都进行物理 下行控制信道的盲检测。
因此, 网络侧设备通过生成上述特定物理下行控制信道, 该特定物理下 行控制信道承载的指示信息仅指示用户设备在该用户设备所监测的载波中 的一个载波上是否被调度, 或该指示信息指示用户设备在由该用户设备所监 测的所有载波形成的载波组上是否被调度, 不仅可以避免产生额外的物理下 行控制信道盲检测, 减少物理下行控制信道盲检测的次数, 还可以进一步减 小特定 PDCCH开销。
在本发明实施例中, 网络侧设备生成的特定物理下行控制信道的信令长 度与现有通信系统中的物理下行控制信道的其中一种信令长度相同, 即每个 特定物理下行控制信道的格式与通信系统中的物理下行控制信道的多种格 式中的一种格式相同, 并且不同的特定物理下行控制信道的信令长度可以相 同也可以不相同。 当然也可以单独设计该特定 PDCCH 的格式。 该特定 PDCCH还可以用 RRC信令在多种格式中半静态地配置其中一种或几种,并 且, 该特定 PDCCH可以用不同的 ·ί尤码来区分, 因为该特定 PDCCH是供多 个用户来使用, 所以这个扰码优选的是多个用户公知的扰码, 此外该扰码还 可以是对载波或载波组特定的扰码。 由于特定 PDCCH釆用相对固定的信令 长度, 因而可以减少 PDCCH的盲检测次数, 进而降低虚警的概率。
在本发明实施例中, 网络侧设备生成的特定物理下行控制信道的位置是 固定的或每个用户设备能够计算得到的确知位置。 例如, 该特定 PDCCH的 位置可以是用户设备通过上述公知的扰码、 对载波 /载波组特定的扰码和 /或 子帧编号等参数计算得出的某个确知位置; 该特定 PDCCH还可以放置在相 对固定的一个空间内, 此空间是对于特定 PDCCH所指示的所有 UE而言公 知的一个空间,这些 UE可以在这个空间中进行盲检测,例如该特定 PDCCH 的位置可以放在现有的公共搜索空间或其它新定义的搜索空间中。 类似地, 由于该特定 PDCCH的位置相对固定,因而可以减少 PDCCH的盲检测次数, 进而降低虚警的概率。
在本发明实施例中 , 特定 PDCCH所承载的降低 UE进行盲检测的指示 信息可以包括两种情况, 一种情况是该指示信息只包括 UE在所监测的载波 上是否被调度的信息, 更优选地, 另一种情况是该指示信息除了包括 UE在 所监测的载波上是否被调度的信息之外还可以包括进一步降低盲检测的其 它信息, 比如具体的控制信道格式、 CCE聚合等级等。 现在对这两种情况分 别加以详细描述。
第一种情况 , 特定 PDCCH所承载的指示信息只包括 UE在所监测的载 波上是否被调度的信息, 其具体构造如下:
( 1 ) 对于承载指示每个用户设备在单个载波上是否被调度的指示信息 的特定 PDCCH而言: 优选地对于每个 UE用 1比特就可以指示这个载波上 UE是否被调度;
( 2 ) 对于承载指示每个用户设备在由其所监测的载波形成的载波组单 个载波上是否被调度的指示信息的特定 PDCCH而言:
如果指示信息釆用绑定指示的方式, 则对于每个 UE可以用 1比特指示 UE在这些载波上是否被调度;
如果指示信息釆用分别指示的方式, 则需要设置多个比特, 该指示信息 的比特数可以由两种方式确定: 第一种是按照 UE所监测的最大载波数来确 定, 如 UE所监测的最大载波个数为 3 , 则该指示信息对于每个 UE就需要 3 比特, 此时对于所监测的载波的数量小于 3的 UE, 剩余的比特可以进一步 指示其它包括控制信道格式的附加信息, 或者用作虚拟 CRC 比特; 第二种 是按照某个 UE所监测的载波数来确定比特数,例如根据 3个载波数来确定, 则对于所监测的载波的数量大于 3的 UE就需要把部分载波绑定到一起来指 示 UE是否被调度的信息, 而对于小于 3个载波的 UE, 剩余的比特可以进 一步指示其它包括控制信道格式的附加信息, 或者用作虚拟 CRC比特。
第二种情况, 该指示信息除了包括 UE在所监测的载波上是否被调度的 信息之外还可以包括进一步降低盲检测的其它信息, 比如具体的控制信道格 式等, 剩余的比特也可以用作虚拟 CRC比特, 其具体构造如下:
( 1 ) 对于承载指示每个用户设备在单个载波上是否被调度的指示信息 的特定 PDCCH而言: 可以分为两种指示方式, 第一种为相同比特数的联合 指示方式,例如,每个 UE釆用两个比特,表示四种状态,其中可以釆用 "00" 表示没有被调度, 其余 3种状态表示其它降低盲检测的信息, 如控制信道格 式等; 第二种为不同比特数的级联指示方式, 但需要设定一个最大比特数, 例如最大比特数为 2, 则第一位可以用来指示 UE被调度与否, 比如 0表示 未被调度, 1表示被调度, 如果 UE检测到第一位是 0, 则停止盲检测, 如 果 UE检测到 1, 则表示 N-1 ( N为最大比特数) 个比特(在本例中为 1个 比特 )还是供这个 UE来使用, 以承载具体的控制信道格式等, 剩余的比特 还可以用作虚拟 CRC比特。
( 2 ) 对于承载指示每个用户设备在由其所监测的载波形成的载波组单 个载波上是否被调度的指示信息的特定 PDCCH而言: 具体地可以分为三种 情况, 第一种是当釆用绑定指示的方式且多个载波采用相同的控制信道格式 时, 假设 UE监测两个载波, 则需要两个比特信息, 第一个比特指示 UE被 调度与否, 剩下的一个比特具体指示多种控制信道格式; 第二种是当采用绑 定指示的方式且多个载波控制信道格式不同时, 仍假设 UE监测两个载波, 则需要 3个比特信息, 第一个比特指示 UE被调度与否, 剩下的两份比特信 息分别指示两个载波所釆用的控制信道格式; 第三种是当采用分别指示的方 式且多个载波控制信道格式相同时, 假设两个载波, 则需要 3个比特信息, 2个比特分别用来指示 UE在多个载波上被调度与否, 最后一份比特信息用 来指示具体的控制信道格式信息。
由此, 根据本发明实施例提供的盲检测的发射方法能够有效地避免额外 的盲检测, 从而减少用户设备盲检测的次数, 提高盲检测的效率, 减少电池 电量的消耗, 降低信令开销。
本发明实施例还提供了一种信息接收方法, 如图 3所示, 该信息接收方 法包括:
S210, 接收来自网络侧设备的特定物理下行控制信道, 所述特定物理下 行控制信道承载指示用户设备集合中的用户设备是否被调度的指示信息, 其 中所述用户设备集合包括至少两个用户设备; 以及
S220, 根据该指示信息确定是否进行物理下行控制信道盲检测。
由于用户设备接收的特定物理下行控制信道承载了指示用户设备是否 被调度的指示信息, 因此用户设备能够根据该指示信息首先获取自己是否被 调度的信息, 从而可以确定是否进行后续的物理下行控制信道盲检测操作, 避免产生额外的物理下行控制信道盲检测, 由此使得本发明能够有效地减少 用户设备进行盲检测的次数, 提高盲检测的效率。 另一方面, 本发明实施例 的特定物理下行控制信道承载的指示信息包括了多个用户设备是否被调度 的信息, 从而能够有效地降低特定物理下行控制信道的信令开销。
在本发明实施例中,用户设备可以根据特定的信息长度和 /或在确知的位 置上对特定物理下行控制信道进行校验, 并获取该 UE是否被调度的指示信 物理下行控制信道进行校验, 以降低虚警概率。
具体地如图 4所示, 所述根据所述指示信息确定是否进行物理下行控制 信道盲检测可以包括: 当确定指示信息指示用户设备被调度时, 则根据该指 示信息进行物理下行控制信道盲检测。 所述根据所述指示信息确定是否进行 物理下行控制信道盲检测还可以包括: 当确定指示信息指示用户设备没有被 调度时, 则根据该指示信息不进行物理下行控制信道盲检测。 所述根据所述 指示信息确定是否进行物理下行控制信道盲检测还可以包括: 当确定指示信 息指示用户设备没有被调度时, 如果该用户设备具有数据传输, 则根据该指 示信息进行物理下行控制信道盲检测, 如果该用户设备没有数据传输, 则不 进行物理下行控制信道盲检测。 由此可以避免产生额外的物理下行控制信息 盲检测, 进而减少物理下行控制信道盲检测的次数, 提高物理下行控制信道 盲检测的效率。
在本发明实施例中,在所述接收来自网络侧设备的特定物理下行控制信 道之后, 信息接收方法还包括: 在接收到的所述特定物理下行控制信道的信 令长度与现有通信系统中的物理下行控制信道的其中一种信令长度相同时, 使用所述用户设备集合公知的公知扰码或使用对所述每个用户设备监测的 载波特定的特定扰码来识别所述特定物理下行控制信道。
在本发明实施例中, 在所述接收来自网络侧设备的特定物理下行控制信 道之后, 信息接收方法还可以包括: 在未检测到特定物理下行控制信道承载 的指示信息时,在所监测的所有载波上进行物理下行控制信道盲检测。例如, 如果用户设备没有检测到指示该用户设备是否被调度的指示信息, 即该指示 信息丢失, 则用户设备可以选择在所监测的所有载波上进行盲检测, 或不再 继续进行盲检测, 或只在某个或某几个载波上进行盲检测。 在此情况下, 当 用户设备周期性地接收特定 PDCCH时, 优选的是用户设备在所监测的所有 载波上进行盲检测。 由于用户设备的检测周期确定, 且用户设备未检测到指 示信息的概率较小, 所以一旦用户设备丢失该指示信息而在所监测的所有载 波上进行盲检测所带来的盲检测不是很多, 此外, 还能避免丢失所指示的物 理下行控制信道。 在指示信息丢失的情况下, 当用户设备非周期性地接收特 定 PDCCH时, 优选的是用户设备不再继续进行盲检测, 或只在某个或某几 个载波上进行盲检测。 此时, 由于用户设备不能够得知特定 PDCCH发送的 具体时间, 所以每个子帧都需要去检测特定 PDCCH, 因而, 一旦指示信息 丢失, 用户设备就分不清是网络侧设备没有发送特定 PDCCH 还是特定 PDCCH 没有被检测到, 因此, 优选的是用户设备不再继续进行盲检测, 或 只在某个或某几个载波上进行盲检测。
优选地, 在这种情况下, 用户设备在所监测的所有载波上进行控制信道 盲检测。 即使用户设备在此情况下在所监测的所有载波上进行控制信道盲检 测, 由于用户设备未检测到指示信息的概率较小, 大多数用户设备还是能够 根据指示信息确定是否进行盲检测, 避免产生额外的盲检测, 由此还是能够 有效地减少物理下行控制信道盲检测的次数,提高物理下行控制信道盲检测 的效率
本发明实施例还提供了一种网络侧设备 100, 如图 5所示, 该网络侧设 备 100包括生成模块 110和发送模块 120, 其中, 生成模块 110用于生成特 定物理下行控制信道, 该特定物理下行控制信道承载指示用户设备集合中的 用户设备是否被调度的指示信息, 其中该用户设备集合包括至少两个用户设 备; 发送模块 120用于向用户设备集合发送所述特定物理下行控制信道。 由于该生成模块 110生成的特定物理下行控制信道承载了指示用户设备 是否被调度的指示信息, 并通过发送模块 120向用户设备发送, 从而使得用 户设备能够根据该指示信息获取自己是否被调度的信息, 从而可以确定是否 进行后续的控制信道盲检测操作, 避免产生额外的控制信道盲检测, 由此使 得本发明能够有效地减少用户设备进行物理下行控制信道盲检测的次数,提 高物理下行控制信道盲检测的效率,并能够减少电池电量的消耗。另一方面, 根据本发明实施例的生成模块 110生成的特定物理下行控制信道承载的指示 信息包括了多个用户设备是否被调度的信息,从而能够有效地降低特定物理 下行控制信道的信令开销。
在本发明实施例中, 网络侧设备还可以包括: 分组模块 111 , 用于将用 户设备集合分为多个用户设备组, 以及生成模块 110可以包括第一生成单元 112, 其中, 第一生成单元 112用于针对每组用户设备生成特定物理下行控 制信道, 该特定物理下行控制信道承载指示用户设备组中的用户设备是否被 调度的指示信息, 此时发送模块 120则用于周期性地向每组用户设备发送针 对每组用户设备生成的特定物理下行控制信道。 在该实施例中, 网络侧设备 100通过釆用对用户设备集合进行分组并周期性地传输针对每组用户设备的 特定物理下行控制信道, 可以进一步降^^特定 PDCCH带来的开销。
在本发明实施例中, 生成模块 110还可以包括: 第一生成单元 112、 第 二生成单元 113、 第三生成单元 114、 第四生成单元 115 中的一种或其任意 组合。 其中, 第二生成单元 113用于生成特定物理下行控制信道, 该特定物 理下行控制信道 载的指示信息包括多个子指示信息, 其中, 一个子指示信 息可以用于指示用户设备集合中的一个用户设备是否被调度, 或一个子指示 信息也可以用于指示用户设备集合中的至少两个用户设备是否被调度。 当一 个子指示信息用于指示用户设备集合中的至少两个用户设备是否被调度时, 网络侧设备 100 通过绑定多个 UE 的方式来生成本发明实施例的特定 PDCCH, 也能够进一步降低特定 PDCCH带来的开销。
其中, 第三生成单元 114用于生成承载仅指示用户设备在该用户设备所 监测的载波中的一个载波上是否被调度的指示信息的特定物理下行控制信 道。 第四生成单元 115用于生成承载指示用户设备在由该用户设备所监测的 所有载波形成的载波组上是否被调度的指示信息的特定物理下行控制信道。 通过上述方式, 网络侧设备 100可以避免产生额外的物理下行控制信道盲检 测, 减少物理下行控制信道盲检测的次数, 还可以进一步减小特定 PDCCH 开销。
与根据本发明实施例的发射方法类似, 生成模块 110生成的特定物理下 行控制信道的位置可以是固定的, 也可以使每个用户设备能够计算得到的确 知位置; 生成模块 110生成的特定物理下行控制信道的信令长度可以与现有 系统中的物理下行控制信道的其中一种信令长度相同, 并且不同的特定物理 下行控制信道的信令长度可以相同也可以不相同。
本发明实施例还提供了一种用户设备 200,如图 7所示,该用户设备 200 包括接收模块 210和确定模块 220 , 其中接收模块 210用于接收来自网络侧 设备的特定物理下行控制信道, 该特定物理下行控制信道承载指示用户设备 集合中的用户设备是否被调度的指示信息, 其中该用户设备集合包括至少两 个用户设备; 确定模块 220用于根据该指示信息确定是否进行物理下行控制 信道盲检测。
由于用户设备能够根据该指示信息首先获取自己是否被调度的信息,从 而能够避免产生额外的控制信道盲检测, 由此能够有效地减少用户设备进行 物理下行控制信道盲检测的次数, 提高物理下行控制信道盲检测效率, 减少 电池电量的消耗, 并能够有效地降低物理下行控制信道的信令开销。
在本发明实施例中, 用户设备也可以周期地或非周期地接收网络侧设备 向用户设备集合发送的特定 PDCCH。 具体地, 如果网络侧设备周期性地发 送特定 PDCCH, 则用户设备需要周期性地检测所述特定 PDCCH, 如果下一 个周期没有到来, 则用户设备就会根据本周期内的特定 PDCCH承载的指示 信息进行控制信道盲检测; 如果特定 PDCCH被漏检, 则用户设备可以在所 监测的所有载波上进行盲检测。 另一方面, 如果网络侧设备非周期性地发送 特定 PDCCH, 则用户设备每一子帧都需要检测特定 PDCCH; 若是特定 PDCCH 没有被发送或者漏检了, 则用户设备可以根据最近一次接收到的特 定 PDCCH中承载的指示信息进行控制信道盲检测。
在本发明实施例中, 当网络侧设备生成的特定物理下行控制信道所承载 的指示信息仅指示用户设备在该用户设备所监测的载波中的一个载波上是 否被调度时, 用户设备则需要在其所监测的每个载波上检测特定 PDCCH, 然后确定是否进行后续的物理下行控制信道盲检测。 当网络侧设备生成的特 定物理下行控制信道所承载的指示信息指示用户设备在由该用户设备所监 测的所有载波形成的载波组上是否被调度时, 用户设备仅需要在其所监测的 某一个特定载波上,例如用户设备特定的主载波,对特定 PDCCH进行检测, 然后根据该特定 PDCCH的指示信息确定是否进行后续的物理下行控制信道 盲检测。
在本发明实施例中, 确定模块 220可以包括:
第一处理单元 221, 用于在确定指示信息指示用户设备被调度时或在确 定所述指示信息指示用户设备没有被调度但该用户设备具有数据传输时,根 据指示信息进行物理下行控制信道盲检测; 和 /或
第二处理单元 222, 用于在确定指示信息指示用户设备没有被调度且该 用户设备没有数据传输时, 不进行物理下行控制信道盲检测。
例如, 当第一处理单元 221确定接收模块 210接收的特定 PDCCH的指 示信息指示用户设备被调度时, 则该第一处理单元 221根据该指示信息进行 物理下行控制信道盲检测。 当第一处理单元 221确定指示信息指示用户设备 没有被调度但该用户设备具有数据传输时, 第一处理单元 221根据该指示信 息进行物理下行控制信道盲检测。 当第二处理单元 222确定指示信息指示用 户设备没有被调度且该用户设备没有数据传输时, 第二处理单元 222不进行 物理下行控制信道盲检测。 由此可以避免产生额外的物理下行控制信息盲检 测, 进而减少物理下行控制信道盲检测的次数, 提高物理下行控制信道盲检 测的效率。
在本发明实施例中, 用户设备还可以包括第三处理模块 223 , 用于在未 检测到所述特定物理下行控制信道承载的所述指示信息时, 在所监测的所有 载波上进行物理下行控制信道盲检测。 例如, 如果用户设备 200没有检测到 指示该用户设备是否被调度的指示信息, 则第三处理模块 223可以选择在所 监测的所有载波上进行盲检测, 或不再继续进行盲检测, 或只在某个或某几 个载波上进行盲检测。 优选地, 在这种情况下, 第三处理模块 223在所监测 的所有载波上进行控制信道盲检测。
在本发明实施例中, 所述用户设备还可以包括识别模块 230, 该识别模 块 230用于在接收模块 210接收到信令长度与现有通信系统中的物理下行控 制信道的其中一种信令长度相同的特定物理下行控制信道时, 使用用户设备 集合公知的公知扰码或使用对每个用户设备监测的载波特定的特定扰码来 识别特定物理下行控制信道。
本领域普通技术人员可以理解, 实现本发明实施例的通信方法的全部或 部分步驟可以通过程序指令相关的硬件来完成, 所述的程序可以存储于可读 取存储介质中, 该程序在执行时执行上述通信方法中对应的步骤。 所述的存 储介质可以是: ROM/RAM, 磁碟、 光盘等。
尽管本发明通过参考附图并结合优选实施例的方式进行了详细描述,但 本发明并不限于此。 在不脱离本发明的精神和实质的前提下, 本领域的普通 技术人员可以对本发明的实施例进行各种等效的变形和改动, 而这些变形与 改动都在本发明的涵盖范围内。

Claims

权利要求
1. 一种信息发射方法, 其特征在于, 包括:
生成特定物理下行控制信道, 所述特定物理下行控制信道承载指示用户 设备集合中的用户设备是否被调度的指示信息, 其中所述用户设备集合包括 至少两个用户设备; 以及
向所述用户设备集合发送所述特定物理下行控制信道。
2. 根据权利要求 1所述的方法, 其特征在于, 所述方法进一步包括: 将所述用户设备集合分为多个用户设备组; 以及
所述生成特定物理下行控制信道, 包括:
针对每组用户设备生成特定物理下行控制信道, 其中, 所述特定物理下 行控制信道承载指示用户设备组中的用户设备是否被调度的指示信息; 以及 所述向所述用户设备集合发送所述特定物理下行控制信道, 包括: 周期 性地向每组用户设备发送所述针对每组用户设备生成的特定物理下行控制 信道。
3. 根据权利要求 1 所述的方法, 其特征在于, 所述特定物理下行控制 信道承载的所述指示信息包括多个子指示信息, 其中, 一个子指示信息用于 指示所述用户设备集合中的一个用户设备是否被调度, 或一个子指示信息用 于指示所述用户设备集合中的至少两个用户设备是否被调度。
4. 根据权利要求 1 所述的方法, 其特征在于, 所述特定物理下行控制 信道承载的所述指示信息仅指示用户设备在所述用户设备所监测的载波中 的一个载波上是否被调度。
5. 根据权利要求 1 所述的方法, 其特征在于, 所述特定物理下行控制 信道承载的所述指示信息指示用户设备在由所述用户设备所监测的所有载 波形成的载波组上是否被调度。
6. 根据权利要求 1至 5中任一项所述的方法, 其特征在于, 所述特定 物理下行控制信道的位置是固定的或所述每个用户设备能够计算得到的确 知位置。
7. 根据权利要求 1至 5中任一项所述的方法, 其特征在于, 所述特定 物理下行控制信道的信令长度与现有通信系统中的物理下行控制信道的其 中一种信令长度相同。
8. 一种信息接收方法, 其特征在于, 包括: 接收来自网络侧设备的特定物理下行控制信道, 所述特定物理下行控制 信道承载指示用户设备集合中的用户设备是否被调度的指示信息, 其中所述 用户设备集合包括至少两个用户设备; 以及
根据所述指示信息确定是否进行物理下行控制信道盲检测。
9. 根据权利要求 8所述的方法, 其特征在于, 所述根据所述指示信息 确定是否进行物理下行控制信道盲检测, 包括: 当确定所述指示信息指示用 户设备被调度时, 则根据所述指示信息进行物理下行控制信道盲检测。
10. 根据权利要求 8所述的方法, 其特征在于, 所述根据所述指示信息 确定是否进行物理下行控制信道盲检测, 包括: 当确定所述指示信息指示用 户设备没有被调度时, 如果该用户设备具有数据传输, 则根据所述指示信息 进行物理下行控制信道盲检测, 如果该用户设备没有数据传输, 则不进行物 理下行控制信道盲检测。
11. 根据权利要求 8所述的方法, 其特征在于, 在所述接收来自网络侧 设备的特定物理下行控制信道之后, 所述方法还包括: 在接收到的所述特定 物理下行控制信道的信令长度与现有通信系统中的物理下行控制信道的其 中一种信令长度相同时,使用所迷用户设备集合公知的公知扰码或使用对所 述每个用户设备监测的载波特定的特定扰码来识别所述特定物理下行控制 信道。
12. 根据权利要求 8至 11 中任一项所述的方法, 其特征在于, 在所述 接收来自网络侧设备的特定物理下行控制信道之后, 所述方法还包括: 在未 检测到所述特定物理下行控制信道承载的所述指示信息时, 在所监测的所有 载波上进行物理下行控制信道盲检测。
13. 一种网络侧设备, 其特征在于, 包括:
生成模块, 用于生成特定物理下行控制信道, 所述特定物理下行控制信 道承载指示用户设备集合中的用户设备是否被调度的指示信息, 其中所述用 户设备集合包括至少两个用户设备; 以及
发送模块, 用于向所述用户设备集合发送所述特定物理下行控制信道。
14. 根据权利要求 13所述的网络侧设备, 其特征在于, 所述网络侧设 备还包括:
分组模块, 用于将所述用户设备集合分为多个用户设备组; 以及 所述生成模块包括第一生成单元, 用于针对每组用户设备生成特定物理 下行控制信道, 其中, 所述特定物理下行控制信道承载指示用户设备组中的 用户设备是否被调度的指示信息, 以及
所述发送模块用于周期性地向每组用户设备发送所述针对每组用户设 备生成的特定物理下行控制信道。
15. 根据权利要求 13所述的网络侧设备, 其特征在于, 所述生成模块 包括第二生成单元, 所述第二生成单元用于生成特定物理下行控制信道, 所 述特定物理下行控制信道承载的所述指示信息包括多个子指示信息, 其中, 一个子指示信息用于指示所述用户设备集合中的一个用户设备是否被调度, 或一个子指示信息用于指示所述用户设备集合中的至少两个用户设备是否 被调度。
16. 根据权利要求 13所述的网络侧设备, 其特征在于, 所述生成模块 包括第三生成单元, 所述第三生成单元用于生成承载仅指示用户设备在所述 用户设备所监测的载波中的一个载波上是否被调度的指示信息的特定物理 下行控制信道。
17. 根据权利要求 13所述的网络侧设备, 其特征在于, 所述生成模块 包括第四生成单元, 所述第四生成单元用于生成承载指示用户设备在由所述 用户设备所监测的所有载波形成的载波组上是否被调度的指示信息的特定 物理下行控制信道。
18. 一种用户设备, 其特征在于, 包括:
接收模块, 用于接收来自网络侧设备的特定物理下行控制信道, 所述特 定物理下行控制信道承载指示用户设备集合中的用户设备是否被调度的指 示信息, 其中所述用户设备集合包括至少两个用户设备; 以及
确定模块, 用于根据所述指示信息确定是否进行物理下行控制信道盲检 测。
19. 根据权利要求 18所述的用户设备, 其特征在于, 所述确定模块包 括:
第一处理单元, 用于在确定所述指示信息指示用户设备被调度时或在确 定所述指示信息指示用户设备没有被调度但该用户设备具有数据传输时,根 据所述指示信息进行物理下行控制信道盲检测;
第二处理单元, 用于在确定所述指示信息指示用户设备没有被调度且该 用户设备没有数据传输时, 不进行物理下行控制信道盲检测。
20. 根据权利要求 18所述的用户设备, 其特征在于, 所述用户设备还 包括: 识别模块, 用于在所述接收模块接收到信令长度与现有通信系统中的 物理下行控制信道的其中一种信令长度相同的所述特定物理下行控制信道 时, 使用所述用户设备集合公知的公知扰码或使用对所述每个用户设备监测 的载波特定的特定扰码来识别所述特定物理下行控制信道。
21. 根据权利要求 18至 20中任一项所述的用户设备, 其特征在于, 所 述用户设备还包括:
第三处理模块, 用于在未检测到所述特定物理下行控制信道承载的所述 指示信息时, 在所监测的所有载波上进行物理下行控制信道盲检测。
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108702708A (zh) * 2018-05-31 2018-10-23 北京小米移动软件有限公司 下行控制信令检测方法、装置及存储介质
WO2019047884A1 (zh) * 2017-09-11 2019-03-14 维沃移动通信有限公司 信息传输方法、网络设备、终端及计算机可读存储介质
CN110381569A (zh) * 2018-04-13 2019-10-25 维沃移动通信有限公司 监听物理下行控制信道的方法、用户设备和网络侧设备
CN110557810A (zh) * 2018-06-04 2019-12-10 电信科学技术研究院有限公司 一种pdcch盲检方法、终端和网络侧设备
WO2020000269A1 (zh) * 2018-06-27 2020-01-02 Oppo广东移动通信有限公司 传输信号的方法、网络设备和终端设备
WO2020011181A1 (zh) * 2018-07-13 2020-01-16 维沃移动通信有限公司 信道检测指示方法、终端及网络设备
CN111713049A (zh) * 2018-02-16 2020-09-25 高通股份有限公司 用于波束指示的虚拟搜索空间
US11368245B2 (en) 2017-07-05 2022-06-21 Vivo Mobile Communication Co., Ltd. Blind detection method, signal transmission method, relevant devices and system
CN114828179A (zh) * 2017-06-20 2022-07-29 北京小米移动软件有限公司 一种调度信令的检测方法及装置
US11659571B2 (en) 2017-06-30 2023-05-23 Vivo Mobile Communication Co., Ltd. Resource information transmission method, relevant device and system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10075309B2 (en) * 2014-04-25 2018-09-11 Qualcomm Incorporated Modulation coding scheme (MCS) indication in LTE uplink
CN108632789A (zh) * 2017-03-24 2018-10-09 中兴通讯股份有限公司 下行控制信道的传输方法、装置、基站和用户设备
EP3595367A4 (en) 2017-03-24 2020-02-19 Huawei Technologies Co., Ltd. METHOD AND DEVICE FOR TRANSMITTING INDICATION INFORMATION
CN109286968B (zh) 2017-07-20 2020-07-28 维沃移动通信有限公司 一种盲检测参数获取方法、相关设备及系统
WO2019232807A1 (zh) 2018-06-08 2019-12-12 北京小米移动软件有限公司 下行控制信令检测方法、装置及存储介质
CN113784451B (zh) * 2018-07-06 2024-05-14 北京小米移动软件有限公司 控制信令的指示方法、装置、终端和基站以及存储介质
CN112087790B (zh) * 2019-06-14 2022-07-29 海信集团有限公司 应用于物联网的控制信道检测方法、装置及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1725869A (zh) * 2004-07-23 2006-01-25 华为技术有限公司 一种高速分组数据业务网络实现快速寻呼的方法
CN101043671A (zh) * 2006-06-15 2007-09-26 华为技术有限公司 一种控制用户终端读取系统消息的方法与系统
CN101404526A (zh) * 2008-11-03 2009-04-08 中兴通讯股份有限公司 下行控制信息处理方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101370246B (zh) * 2007-08-14 2011-07-20 电信科学技术研究院 一种系统信息的广播方法、系统及装置
CN101801090B (zh) * 2009-02-05 2012-09-12 电信科学技术研究院 一种配置下行物理控制信道的方法、基站和用户终端

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1725869A (zh) * 2004-07-23 2006-01-25 华为技术有限公司 一种高速分组数据业务网络实现快速寻呼的方法
CN101043671A (zh) * 2006-06-15 2007-09-26 华为技术有限公司 一种控制用户终端读取系统消息的方法与系统
CN101404526A (zh) * 2008-11-03 2009-04-08 中兴通讯股份有限公司 下行控制信息处理方法

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114828179A (zh) * 2017-06-20 2022-07-29 北京小米移动软件有限公司 一种调度信令的检测方法及装置
CN114828179B (zh) * 2017-06-20 2024-03-01 北京小米移动软件有限公司 一种调度信令的检测方法及装置
US11659571B2 (en) 2017-06-30 2023-05-23 Vivo Mobile Communication Co., Ltd. Resource information transmission method, relevant device and system
US11368245B2 (en) 2017-07-05 2022-06-21 Vivo Mobile Communication Co., Ltd. Blind detection method, signal transmission method, relevant devices and system
WO2019047884A1 (zh) * 2017-09-11 2019-03-14 维沃移动通信有限公司 信息传输方法、网络设备、终端及计算机可读存储介质
CN111713049A (zh) * 2018-02-16 2020-09-25 高通股份有限公司 用于波束指示的虚拟搜索空间
CN111713049B (zh) * 2018-02-16 2022-12-27 高通股份有限公司 用于波束指示的虚拟搜索空间
US11848874B2 (en) 2018-02-16 2023-12-19 Qualcomm Incorporated Virtual search spaces for beam indication
CN110381569B (zh) * 2018-04-13 2021-02-05 维沃移动通信有限公司 监听物理下行控制信道的方法、用户设备和网络侧设备
US11477778B2 (en) 2018-04-13 2022-10-18 Vivo Mobile Communication Co., Ltd. Physical downlink control channel monitoring method, user equipment and network side device
CN110381569A (zh) * 2018-04-13 2019-10-25 维沃移动通信有限公司 监听物理下行控制信道的方法、用户设备和网络侧设备
CN108702708A (zh) * 2018-05-31 2018-10-23 北京小米移动软件有限公司 下行控制信令检测方法、装置及存储介质
CN108702708B (zh) * 2018-05-31 2020-07-10 北京小米移动软件有限公司 下行控制信令检测方法、装置及存储介质
WO2019227428A1 (zh) * 2018-05-31 2019-12-05 北京小米移动软件有限公司 下行控制信令检测方法、装置及存储介质
CN110557810B (zh) * 2018-06-04 2021-06-11 电信科学技术研究院有限公司 一种pdcch盲检方法、终端和网络侧设备
US11445441B2 (en) 2018-06-04 2022-09-13 Datang Mobile Communications Equipment Co., Ltd. PDCCH blind detection method, terminal and network side device
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US11902897B2 (en) 2018-06-27 2024-02-13 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for transmitting signal, network apparatus, and terminal apparatus
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US11838746B2 (en) 2018-07-13 2023-12-05 Vivo Mobile Communication Co., Ltd. Channel monitoring indication method, terminal, and network device

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