WO2018112700A1 - 传输信息的方法、网络设备和终端设备 - Google Patents

传输信息的方法、网络设备和终端设备 Download PDF

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Publication number
WO2018112700A1
WO2018112700A1 PCT/CN2016/110753 CN2016110753W WO2018112700A1 WO 2018112700 A1 WO2018112700 A1 WO 2018112700A1 CN 2016110753 W CN2016110753 W CN 2016110753W WO 2018112700 A1 WO2018112700 A1 WO 2018112700A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
control channel
cce
frequency
downlink control
Prior art date
Application number
PCT/CN2016/110753
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English (en)
French (fr)
Inventor
唐海
许华
Original Assignee
广东欧珀移动通信有限公司
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Publication date
Priority to CA3046405A priority Critical patent/CA3046405C/en
Priority to US16/466,400 priority patent/US11234228B2/en
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to MX2019007251A priority patent/MX2019007251A/es
Priority to HUE16924661A priority patent/HUE053211T2/hu
Priority to ES16924661T priority patent/ES2863399T3/es
Priority to RU2019122547A priority patent/RU2733064C1/ru
Priority to DK16924661.8T priority patent/DK3544347T3/da
Priority to CN201680091694.1A priority patent/CN110089171B/zh
Priority to AU2016432933A priority patent/AU2016432933B9/en
Priority to JP2019532670A priority patent/JP6935499B2/ja
Priority to PT169246618T priority patent/PT3544347T/pt
Priority to KR1020197019013A priority patent/KR20190098990A/ko
Priority to BR112019012387-3A priority patent/BR112019012387A2/pt
Priority to IL267200A priority patent/IL267200B/en
Priority to EP16924661.8A priority patent/EP3544347B1/en
Priority to CN202011474754.2A priority patent/CN112600656A/zh
Priority to EP20210300.8A priority patent/EP3800957A1/en
Priority to PL16924661T priority patent/PL3544347T3/pl
Priority to PCT/CN2016/110753 priority patent/WO2018112700A1/zh
Priority to TW106141459A priority patent/TWI746708B/zh
Publication of WO2018112700A1 publication Critical patent/WO2018112700A1/zh
Priority to PH12019501305A priority patent/PH12019501305A1/en
Priority to ZA2019/03752A priority patent/ZA201903752B/en
Priority to US17/206,538 priority patent/US11659568B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource

Definitions

  • the present application relates to the field of communications, and more particularly, to a method of transmitting information, a network device, and a terminal device.
  • the downlink control channel of the Long Term Evolution (LTE) system is the first several orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing) in each time domain scheduling unit (called a subframe in LTE). OFDM) transmitted on the symbol.
  • the control region is a time-frequency resource included in the first few OFDM symbols of the entire system bandwidth, and is shared by each terminal device.
  • the network side transmits a control channel configured by the terminal device at some specific location related to the terminal device.
  • the network side may also dynamically allocate different physical resources to transmit the control channel of each terminal according to the load of the control signal, the coding error rate, and the like. Different sized physical resources and different specific locations constitute the location and resources used by the control channel configured by the terminal device.
  • a particular location and corresponding resource is referred to as a candidate for the control channel of the terminal device configuration, all of which are collectively referred to as the control channel search space of the terminal device.
  • the terminal device For the terminal device, it needs to blindly check the candidate belonging to its own control channel in its own control channel search space in the control area of each subframe to find out whether there is a control signal sent to it by the network side until it is found. If the terminal device still does not detect its own control channel after blindly checking its own control channel search space, the terminal device can assume that the network side does not send its own control channel.
  • control area is not the entire system bandwidth, but can be part of it; it is also possible to consider beamforming or other factors.
  • the embodiment of the present application provides a method for transmitting information, a network device, and a terminal device, which can improve performance of the system.
  • a method of transmitting information comprising:
  • Determining a time-frequency resource of the downlink control channel of the at least one terminal device where the time-frequency resource of the downlink control channel of the at least one terminal device is mapped in a first-frequency domain in a first control region within the system bandwidth according to a frequency-first domain and a time-domain domain;
  • the network device maps the time-frequency resources of the downlink control channel of the at least one terminal device in the first frequency control region in the first control region.
  • one or more downlink control channels can be mapped to one OFDM symbol, so as to implement a transmission mode such as beamforming according to the requirements of the 5G system, thereby increasing downlink coverage and improving system performance.
  • the manner of the pre-frequency domain re-time domain includes:
  • determining a time-frequency resource of a downlink control channel of the at least one terminal device includes:
  • the CCE resource corresponding to the first control channel candidate is allocated to the specific terminal device, if the CCE resource corresponding to the first control channel candidate has been allocated. , the CCE resource corresponding to the next control channel candidate that is not allocated is allocated to the specific terminal device;
  • the CCE resources of the first control region are mapped according to the pre-frequency domain re-time domain manner, and time-frequency resources of the downlink control channel of the at least one terminal device are obtained.
  • the CCE resources corresponding to one control channel candidate are consecutive in the frequency domain.
  • the method further includes:
  • control area configuration information transmitting, to the at least one terminal device, control area configuration information, where the control area configuration information is used to indicate a configuration of the first control area.
  • the method further includes:
  • the first search space configuration information is sent to the specific terminal device in the at least one terminal device, where the first search space configuration information is used to indicate an OFDM symbol in which the time-frequency resource of the downlink control channel of the specific terminal device is located.
  • the OFDM symbol in the first control region is associated with a beam sequence number, wherein a time-frequency resource of a downlink control channel corresponding to a specific beam sequence is located on an OFDM symbol associated with the specific beam sequence number.
  • the method further includes:
  • the sending by the time-frequency resource of the downlink control channel of the at least one terminal device, the downlink control channel of the at least one terminal device, including:
  • Beamforming is performed on at least one OFDM symbol of the first control region, and the downlink control channel of the at least one terminal device is sent by the time-frequency resource of the downlink control channel of the at least one terminal device.
  • a method of transmitting information including:
  • the network device maps the time-frequency resources of the downlink control channel of the at least one terminal device in the first-time control region according to the first-time domain and the frequency-domain. In this way, one or more downlink control channels can be mapped to different OFDM symbols on one PRB, which facilitates multiplexing of control channel resources and saves control channel resources, thereby improving system performance.
  • the first time domain re-frequency domain manner includes:
  • determining a time-frequency resource of a downlink control channel of the at least one terminal device includes:
  • Control channel element CCE resource corresponding to at least one control channel candidate in the control region: radio network temporary identifier RNTI of the specific terminal device, current time domain scheduling unit sequence number, carrier frequency sequence number, control channel element aggregation level CCE AL, beam Serial number and/or cell identification;
  • the CCE resource corresponding to the first control channel candidate is allocated to the specific terminal device, if the CCE resource corresponding to the first control channel candidate has been allocated. , the CCE resource corresponding to the next control channel candidate that is not allocated is allocated to the specific terminal device;
  • the CCE resources of the first control area are mapped according to the first time domain and the frequency domain, and the time-frequency resources of the downlink control channel of the at least one terminal device are obtained.
  • the CCE resources corresponding to one control channel candidate are continuous in the frequency domain/time domain.
  • the method further includes:
  • control area configuration information transmitting, to the at least one terminal device, control area configuration information, where the control area configuration information is used to indicate a configuration of the first control area.
  • a method of transmitting information including:
  • detecting the downlink control channel of the terminal device in the first control area according to the configuration information including:
  • a control channel element CCE resource corresponding to the at least one control channel candidate in the first control area a radio network temporary identifier RNTI of the terminal device, a current time domain scheduling unit sequence number, Frequency sequence number, control channel element aggregation level CCE AL, beam sequence number or cell identifier;
  • the mapping manner of the first control region is a pre-frequency domain re-time domain manner, where the first control region includes one or more orthogonal frequency division multiplexing OFDM symbols.
  • the mapping manner of the first control region is a first time domain re-frequency domain manner, where the first control region includes multiple OFDM symbols.
  • a network device comprising means for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a network device comprising means for performing the method of the second aspect or any possible implementation of the second aspect.
  • a terminal device comprising means for performing the method of any of the third or third aspects of the possible implementation.
  • a network device in a seventh aspect, includes a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform any of the first aspect or any possible implementation of the first aspect, or the method of the second aspect or any possible implementation of the second aspect.
  • a terminal device in an eighth aspect, includes a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the third aspect or the third aspect.
  • a ninth aspect a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a computer readable medium for storing a computer program comprising instructions for performing the method of any of the second aspect or any of the possible implementations of the second aspect.
  • a computer readable medium for storing a computer program comprising instructions for performing the method of any of the third aspect or any of the possible implementations of the third aspect.
  • FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applicable.
  • FIG. 2 is a schematic diagram of a resource set in an embodiment of the present application.
  • FIG. 3 is a schematic diagram of control channel elements in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a control channel candidate in an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for transmitting information according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a mapping manner according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a method for transmitting information according to another embodiment of the present application.
  • FIG. 8 is a schematic diagram of a mapping manner of another embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a method for transmitting information according to still another embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a network device of another embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a network device according to still another embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • FIG. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applied.
  • network 100 can include network device 102 and terminal devices 104, 106, 108, 110, 112, and 114, wherein the network device and the terminal device are connected by wireless.
  • FIG. 1 only takes a network as a network device as an example, but the embodiment of the present application is not limited thereto.
  • the network may further include more network devices; similarly, the network may also include more terminals.
  • the device, and the network device may also include other devices.
  • the present application describes various embodiments in connection with a terminal device.
  • the terminal device may also refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user agent.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, or a Personal Digital Assistant ("PDA").
  • PLMN Public Land Mobile Network
  • the present application describes various embodiments in connection with a network device.
  • the network device may be a device for communicating with the terminal device, and the network device may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a base station (NodeB, NB) in the WCDMA system, or may be LTE.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • the evolved base station (Evolutional Node B, eNB or eNodeB) in the system may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station or an access point.
  • CRAN Cloud Radio Access Network
  • the common control channel is used to broadcast some common information to all terminal devices or a part of terminal devices.
  • the UE-specific downlink control channel is used to transmit downlink related control information, such as configuration information about data transmission, to a designated terminal device.
  • the terminal device determines whether the network has downlink data transmission by using downlink control information configured by the terminal device in a downlink time domain scheduling unit, such as a slot or mini-slot, and uses related configuration information to Demodulate the downlink data.
  • a downlink time domain scheduling unit such as a slot or mini-slot
  • a downlink control area also called a control resource set, does not cover the entire system bandwidth in the frequency domain, but only a part of the frequency domain resources.
  • This area may consist of a number of physical resource blocks (PRBs) that are contiguous or non-contiguous in the frequency domain. This is because the coverage band of the 5G system may be very wide (especially in the high frequency band), so that the terminal device needs to consume a large amount of terminal equipment resources to detect the control channel over the entire frequency band.
  • PRBs physical resource blocks
  • the downlink control region is also not composed of all OFDM symbols in a time domain scheduling unit, but is composed of one or several OFDM symbols.
  • OFDM symbols are located at the beginning of the downlink time domain scheduling unit.
  • the design consideration is to allow the terminal device to have sufficient time to demodulate the data channel after detecting the control signal to meet the needs of some applications, especially for low-latency applications.
  • Figure 2 shows such a resource set.
  • the transmission of the general control channel has undergone the following steps.
  • the control information is appended with a cyclic error correction code at the end, and then encoded, modulated, preprocessed (eg, using transmission diversity or beamforming), and then uploaded on the allocated physical resources. give away.
  • a downlink control channel can be transmitted by one or several control channel elements (CCEs), such as using 1, 2, 4, 8, ... control channel elements, which is also called Control channel element aggregation level (CCE aggregation level, CCE AL).
  • CCEs Control channel element aggregation level
  • a control channel element may be composed of several control resource units, one control resource unit being a physical resource block (PRB) in the frequency domain and one in the time domain (or A) time-frequency resource composed of OFDM symbols, which can be regarded as the smallest resource unit used for control channel transmission.
  • PRB physical resource block
  • time domain or A time-frequency resource composed of OFDM symbols
  • a downlink control region can be shared by multiple terminal devices, meaning that their downlink control channels will be transmitted in this downlink control region.
  • the terminal device needs to search for a blind control channel in the corresponding downlink control area in the time domain scheduling unit to obtain its own downlink control channel.
  • the downlink control channel sent to each terminal device needs to be transmitted on a specific resource, and the terminal device also needs to search for blind detection on a specific resource. Its own downlink control channel.
  • the resources used by these candidates may overlap completely or partially or not.
  • it may not know which candidate is used on the network side (including candidates based on the aggregation level of the same or different control channel elements) to transmit its control channel, so it needs to be in all possible candidates.
  • the resource is blindly detected to detect the control channel belonging to it. If no control signal belongs to it on all possible candidates, the terminal device has to assume that the network side has not sent a control signal to it at the current scheduling unit.
  • FIG. 5 shows a schematic flow diagram of a method 500 of transmitting information in accordance with one embodiment of the present application.
  • the method 500 is performed by a network device, such as the network device 102 of FIG.
  • the method 500 includes:
  • S510 Determine a time-frequency resource of a downlink control channel of the at least one terminal device, where the time-frequency resource of the downlink control channel of the at least one terminal device is in a first control region within the system bandwidth. Mapping within the frequency domain and then the time domain;
  • S520 Send, by using a time-frequency resource of a downlink control channel of the at least one terminal device, a downlink control channel of the at least one terminal device.
  • the first control area is a control area within the system bandwidth.
  • the network device maps the time-frequency resources of the downlink control channel of the at least one terminal device in the first frequency control region in the first control region. In this way, one or more downlink control channels can be mapped to one OFDM symbol, so as to implement a transmission mode such as beamforming according to the requirements of the 5G system, thereby increasing downlink coverage and improving system performance.
  • the manner of the pre-frequency domain re-time domain includes:
  • the network device may determine, according to at least one of the following, CCE resources corresponding to the at least one control channel candidate of the specific terminal device in the at least one terminal device: the wireless network of the specific terminal device is temporarily Identification (Radio Network Tempory Identity, RNTI), current time domain scheduling unit sequence number, carrier frequency sequence number, CCE AL, beam sequence number, and/or cell identifier;
  • RNTI Radio Network Tempory Identity
  • RNTI Radio Network Tempory Identity
  • current time domain scheduling unit sequence number carrier frequency sequence number
  • CCE AL carrier frequency sequence number
  • beam sequence number and/or cell identifier
  • the CCE resource corresponding to the first control channel candidate is allocated to the specific terminal device, if the CCE resource corresponding to the first control channel candidate has been allocated. , the CCE resource corresponding to the next control channel candidate that is not allocated is allocated to the specific terminal device;
  • the CCE resources of the first control region are mapped according to the pre-frequency domain re-time domain manner, and time-frequency resources of the downlink control channel of the at least one terminal device are obtained.
  • the network device allocates all possible downlink control channel resources of the first control area in units of control channel elements; and determines, according to one or more parameters, a certain control channel candidate of the specific terminal device in the first control area.
  • Corresponding control channel element resources are consecutive control channel elements (eg, N consecutive CCE resources are used for the entire channel using N CCEs).
  • the network device may continue to determine the control channel element resources corresponding to the next control channel candidate until it is found that one can be used to transmit one. No control channel candidates The used control channel element resource.
  • the network side device repeats the above steps to determine the resources available to each downlink control channel candidate of the terminal device that may be scheduled.
  • the network device maps the CCE resources (allocated and unallocated) of the first control area to the physical resources in order according to the frequency domain re-time domain manner. For example, the first OFMD symbol in the first control region is first filled along the frequency domain, and the second OFDM symbol in the first control region is filled along the frequency domain, and so on until the end.
  • the CCE resources corresponding to one control channel candidate are continuous in the frequency domain.
  • the time-frequency resource of the downlink control channel of a certain terminal device may be located on one OFDM symbol. That is to say, for the terminal device, the control region may be one OFDM symbol.
  • the network device can map all CCEs in the frequency domain to the first OFDM symbol in the control resource set.
  • the first OFDM symbol may be mapped along the frequency domain, then the second OFDM symbol may be mapped along the frequency domain, and so on.
  • the solution of this embodiment can be used in a beam system to map one or more control channels to one OFDM symbol for transmission, to facilitate beamforming, and to improve downlink coverage and performance.
  • the network device may perform beamforming on at least one OFDM symbol of the first control region, and send, by using a time-frequency resource of the downlink control channel of the at least one terminal device, a downlink control channel of the at least one terminal device.
  • the first control region may include one or more OFDM symbols. That is to say, the network device may implement the technical solution of the embodiment of the present application by using a control area of one OFDM symbol, and may also implement the technical solution of the embodiment of the present application by using a control area of multiple OFDM symbols.
  • the control region of multiple OFDM symbols due to the use of the pre-frequency domain In the time domain manner, the time-frequency resources of the downlink control channel of one or several terminal devices may be located on one OFDM symbol.
  • the network device may further send control area configuration information to the at least one terminal device, where the control area configuration information is used to indicate the configuration of the first control area.
  • control area configuration information may indicate a frequency domain configuration and a time domain configuration of the first control region.
  • the frequency domain configuration of the first control region may also be used as the frequency domain configuration of the search space region of the specific terminal control channel.
  • the network device may further send the first search space configuration information to the specific terminal device of the at least one terminal device, where the first search space configuration information is used to indicate that the time-frequency resource of the downlink control channel of the specific terminal device is located. OFDM symbol. This is the time domain configuration of the search space area of a particular terminal control channel.
  • the configuration of the first control area may be semi-statically configured by higher layer signaling.
  • the time domain configuration of the search space area of the specific terminal control channel may be semi-statically configured by higher layer signaling, or dynamically configured by physical layer signaling, such as broadcasting using a common channel of the physical layer.
  • the OFDM symbol in the first control area may be associated with the beam sequence number, where the time-frequency resource of the downlink control channel corresponding to the specific beam sequence is located on the OFDM symbol associated with the specific beam sequence number.
  • the network device may further send, to the at least one terminal device, second search space configuration information, where the second search space configuration information is used to indicate an OFDM symbol associated with the beam sequence number.
  • a corresponding search space can be configured for different beams. For example, it can be configured in the manner of Table 1. This configuration can be semi-statically configured with higher layer signaling.
  • time domain mapping may indicate the mapping manner of the prior time domain re-frequency domain described in the following embodiments.
  • FIG. 7 shows a schematic flow chart of a method 700 of transmitting information according to another embodiment of the present application.
  • the method 700 is performed by a network device, such as the network device 102 of FIG.
  • the method 700 includes:
  • S720 Send, by using a time-frequency resource of a downlink control channel of the at least one terminal device, a downlink control channel of the at least one terminal device.
  • the first control area is a control area within the system bandwidth.
  • the network device maps the time-frequency resources of the downlink control channel of the at least one terminal device in a first-time domain and then the frequency domain in the first control region. In this way, one or more downlink control channels can be mapped to different OFDM symbols on one PRB, which facilitates multiplexing of control channel resources and saves control channel resources, thereby improving system performance.
  • the manner of the first time domain re-frequency domain includes:
  • the network device may determine, according to at least one of the following, a control channel element CCE resource corresponding to the at least one control channel candidate of the specific terminal device in the at least one terminal device: the specific terminal device wireless Network Temporary Identity RNTI, current time domain scheduling unit sequence number, carrier frequency sequence number, control channel element aggregation level CCE AL, beam sequence number, and/or cell identity;
  • the CCE resource corresponding to the first control channel candidate is allocated to the specific terminal device, if the CCE resource corresponding to the first control channel candidate has been allocated. , the CCE resource corresponding to the next control channel candidate that is not allocated is allocated to the specific terminal device;
  • the CCE resources of the first control area are mapped according to the first time domain and the frequency domain, and the downlink control of the at least one terminal device is obtained. Time-frequency resources of the channel.
  • the network device allocates all possible downlink control channel resources of the first control area in units of control channel elements; and determines, according to one or more parameters, a certain control channel candidate of the specific terminal device in the first control area.
  • Corresponding control channel element resources are consecutive control channel elements (eg, N consecutive CCE resources are used for the entire channel using N CCEs).
  • the network device may continue to determine the control channel element resources corresponding to the next control channel candidate until it is found that one can be used to transmit one. Control channel element resources of control channel candidates that have not been used.
  • the network side device repeats the above steps to determine resources that can be used by downlink control channel candidates of other terminal devices.
  • the network device maps the CCE resources (allocated and unallocated) of the first control area to the physical resources in order according to the time domain re-frequency domain manner. For example, all the OFDM symbols allocated to the control channel in one PRB of the first control region are first filled along the time domain (can be filled in units of control resource units), and then the next one of the first control region is filled in the time domain. All OFDM symbols assigned to the control channel within the PRB, and so on, until the end.
  • the CCE resources corresponding to one control channel candidate are consecutive in the frequency domain/time domain.
  • a control area allocated by a specific terminal (may be shared with other terminals) is an entire control resource set area (including three OFDM symbols), and the network device will control resources in all of the time-frequency resource areas.
  • the network device can decompose all CCEs into several resource units (such as four in the figure), assuming that each resource unit occupies one frequency domain resource.
  • a unit block (PRB) and a time-frequency resource of a time-domain OFDM symbol the network device sequentially maps the control resource elements (and the resource elements they contain) in time domain order to all of the first PRBs in the control resource set.
  • the OFDM symbols (in order of the symbol index from small to large) are then sequentially mapped to all OFDM symbols on the second PRB in the control resource set, and so on.
  • the solution of this embodiment can be used in a non-beam system to map one or more control channels to different OFDM symbols on one PRB, which facilitates multiplexing of control channel resources and saves control channel resources.
  • the network device may further send control area configuration information to the at least one terminal device, where the control area configuration information is used to indicate the configuration of the first control area.
  • the control area configuration information may indicate a frequency domain configuration and a time domain configuration of the first control region.
  • the configuration of the first control area may be semi-statically configured by higher layer signaling.
  • the method for transmitting information in the embodiment of the present application is described above from the network device side.
  • the method for transmitting information in the embodiment of the present application is described below from the terminal device side.
  • FIG. 9 shows a schematic flow chart of a method 900 of transmitting information in accordance with an embodiment of the present application.
  • the method 900 is performed by a terminal device, such as the terminal device of FIG.
  • the method 900 includes:
  • the terminal device may determine, according to the configuration information, a mapping manner of the first control area and the first control area;
  • a control channel element CCE resource corresponding to the at least one control channel candidate in the first control area a radio network temporary identifier RNTI of the terminal device, a current time domain scheduling unit sequence number, Frequency sequence number, control channel element aggregation level CCE AL, beam sequence number or cell identifier;
  • the mapping manner of the first control region is a pre-frequency domain re-time domain manner, where the first control region includes one or more orthogonal frequency division multiplexing OFDM symbols.
  • the mapping manner of the first control area is a first time domain re-frequency domain manner, where the first control region includes multiple OFDM symbols.
  • the terminal device may determine, according to the configuration information, a size of the control area, a mapping manner, and a total number of CCEs, and determine, according to the one or more parameters, a control channel candidate of the terminal device in the control area.
  • Corresponding control channel element resources; The control channel element resource and the mapping mode corresponding to a certain control channel candidate perform blind detection on the control channel; if the blind detection is unsuccessful, the terminal device repeats the above steps to detect other control channel candidates until it detects its own control. Channel, if not, the terminal device can assume that the network device does not send its own control channel.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • FIG. 10 shows a schematic block diagram of a network device 1000 in accordance with one embodiment of the present application.
  • the network device 1000 includes:
  • the processing module 1010 is configured to determine a time-frequency resource of the downlink control channel of the at least one terminal device, where the time-frequency resource of the downlink control channel of the at least one terminal device is in the first control region within the system bandwidth according to the pre-frequency domain re-time domain Way of mapping;
  • the transceiver module 1020 is configured to send, by using a time-frequency resource of a downlink control channel of the at least one terminal device, a downlink control channel of the at least one terminal device.
  • the manner of the pre-frequency domain re-time domain includes:
  • processing module 1010 is specifically configured to:
  • the CCE resource corresponding to the first control channel candidate is not allocated, the CCE resource corresponding to the first control channel candidate is allocated to the specific terminal device, if the first control channel candidate The corresponding CCE resource has been allocated, and the CCE resource corresponding to the next control channel candidate that is not allocated is allocated to the specific terminal device;
  • the CCE resources of the first control region are mapped according to the pre-frequency domain re-time domain manner, and time-frequency resources of the downlink control channel of the at least one terminal device are obtained.
  • the CCE resources corresponding to one control channel candidate are consecutive in the frequency domain.
  • the transceiver module 1020 is further configured to send control area configuration information to the at least one terminal device, where the control area configuration information is used to indicate the configuration of the first control area.
  • the transceiver module 1020 is further configured to send first search space configuration information to a specific one of the at least one terminal device, where the first search space configuration information is used to indicate a downlink control channel of the specific terminal device.
  • the OFDM symbol in the first control area is associated with the beam sequence number, where the time-frequency resource of the downlink control channel corresponding to the specific beam sequence is located on the OFDM symbol associated with the specific beam sequence number.
  • the transceiver module 1020 is further configured to send, to the at least one terminal device, second search space configuration information, where the second search space configuration information is used to indicate an OFDM symbol associated with a beam sequence number.
  • the transceiver module 1020 is configured to: perform beamforming on at least one OFDM symbol of the first control area, and send, by using a time-frequency resource of a downlink control channel of the at least one terminal device, the at least one terminal device. Downlink control channel.
  • FIG. 11 shows a schematic block diagram of a network device 1100 in accordance with another embodiment of the present application. As shown in FIG. 11, the network device 1100 includes:
  • the processing module 1110 is configured to determine a time-frequency resource of the downlink control channel of the at least one terminal device, where the time-frequency resource of the downlink control channel of the at least one terminal device is in the first control region within the system bandwidth according to the first time domain. Frequency domain mapping;
  • the transceiver module 1120 is configured to send, by using a time-frequency resource of a downlink control channel of the at least one terminal device, a downlink control channel of the at least one terminal device.
  • the manner of the first time domain re-frequency domain includes:
  • processing module 1110 is specifically configured to:
  • a control channel element CCE resource corresponding to the at least one control channel candidate of the specific terminal device in the first control region: the radio network temporary identifier of the specific terminal device, the current RNTI Time domain scheduling unit sequence number, carrier frequency sequence number, control channel element aggregation level CCE AL, beam sequence number and/or cell identifier;
  • the CCE resource corresponding to the first control channel candidate is allocated to the specific terminal device, if the CCE resource corresponding to the first control channel candidate has been allocated. , the CCE resource corresponding to the next control channel candidate that is not allocated is allocated to the specific terminal device;
  • the CCE resources of the first control area are mapped according to the first time domain and the frequency domain, and the time-frequency resources of the downlink control channel of the at least one terminal device are obtained.
  • the CCE resources corresponding to one control channel candidate are consecutive in the frequency domain/time domain.
  • the transceiver module 1120 is further configured to send control area configuration information to the at least one terminal device, where the control area configuration information is used to indicate the configuration of the first control area.
  • the network device 1000 and the network device 1100 according to an embodiment of the present application may correspond to a network device in a method of transmitting information according to an embodiment of the present application, wherein the above and other operations and/or functions of the respective modules are respectively implemented in order to implement the foregoing respective methods The corresponding process, for the sake of brevity, will not be described here.
  • FIG. 12 shows a schematic block diagram of a terminal device 1200 according to an embodiment of the present application. As shown in FIG. 12, the terminal device 1200 includes:
  • the transceiver module 1210 is configured to receive configuration information sent by the network device, where the configuration information indicates a configuration of the first control area corresponding to the terminal device in the system bandwidth;
  • the processing module 1220 is configured to detect, according to the configuration information, a downlink control channel of the terminal device in the first control region.
  • processing module 1220 is specifically configured to:
  • a control channel element CCE resource corresponding to the at least one control channel candidate in the first control area a radio network temporary identifier RNTI of the terminal device, a current time domain scheduling unit sequence number, Frequency sequence number, control channel element aggregation level CCE AL, beam sequence number or cell identifier;
  • the mapping manner of the first control region is a pre-frequency domain re-time domain manner, where the first control region includes one or more orthogonal frequency division multiplexing OFDM symbols.
  • the mapping manner of the first control area is a first time domain re-frequency domain manner, where the first control region includes multiple OFDM symbols.
  • the terminal device 1200 may correspond to a terminal device in a method of transmitting information according to an embodiment of the present application, and the above and other operations and/or functions of respective modules in the terminal device 1200 respectively implement the foregoing respective methods The corresponding process, for the sake of brevity, will not be described here.
  • FIG. 13 illustrates a structure of a network device provided by still another embodiment of the present application, including at least one processor 1302 (eg, a CPU), at least one network interface 1305 or other communication interface, and a memory 1306. Communication between these components.
  • the processor 1302 is configured to execute executable modules, such as computer programs, stored in the memory 1306.
  • the memory 1306 may include a high speed random access memory (RAM) and may also include a non-volatile memory such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1305 (which may be wired or wireless).
  • the memory 1306 stores a program 13061
  • the processor 1302 executes the program 13061 for performing the methods in the various embodiments of the foregoing application.
  • FIG. 14 shows a structure of a terminal device provided by still another embodiment of the present application, including at least one processor 1402 (for example, a CPU), at least one network interface 1405 or other communication interface, and a memory 1406.
  • the processor 1402 is configured to execute executable modules, such as computer programs, stored in the memory 1406.
  • the memory 1406 may include a high speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1405 (which may be wired or wireless).
  • the memory 1406 stores a program 14061, and the processor 1402 executes the program 14061 for performing the foregoing methods in various embodiments of the present application.
  • the term "and/or” is merely a description of an associated object.
  • the relationship indicates that there can be three relationships.
  • a and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to execute the present invention. All or part of the steps of the methods described in the various embodiments are applied.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请公开了一种传输信息的方法、网络设备和终端设备。该方法包括:确定至少一个终端设备的下行控制信道的时频资源,其中,该至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先频域再时域的方式映射;通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。本申请实施例的传输信息的方法、网络设备和终端设备,能够提升***的性能。

Description

传输信息的方法、网络设备和终端设备 技术领域
本申请涉及通信领域,并且更具体地,涉及一种传输信息的方法、网络设备和终端设备。
背景技术
长期演进(Long Term Evolution,LTE)***的下行控制信道是在每个时域调度单元(在LTE中称为子帧(subframe))的前几个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号上传送的。控制区域是整个***带宽的前几个OFDM符号所包含的时频资源,并由各个终端设备共享。网络侧在和终端设备有关的一些特定位置发送终端设备配置的控制信道。网络侧还可以根据控制信号的负载,编码误码率等要求动态的分配不同大小的物理资源来传送每个终端的控制信道。不同大小的物理资源以及不同的特定位置构成了终端设备配置的控制信道有可能传送的位置和使用的资源。某一个特定位置和对应的资源称为终端设备配置的控制信道的一个候选者,所有这些候选者统称该终端设备的控制信道搜索空间。对于终端设备来说,它需要在每个子帧的控制区域里自己的控制信道搜索空间内盲检属于自己控制信道的候选者来发现有没有网络侧发给它的控制信号,直至发现为止。如果终端设备在盲检完自己的控制信道搜索空间后仍然没有检测到属于自己的控制信道,终端设备可以假定网络侧没有发给自己的控制信道。
在5G***中,控制信道的设计和LTE有一定的差异。首先是控制区域不是整个***带宽,而可以是它的一部分;另外还可能要考虑波束赋形或其他因素等。
因此,亟需一种适合5G***的传输控制信道的技术方案,以提升***的性能。
申请内容
本申请实施例提供了一种传输信息的方法、网络设备和终端设备,能够提升***的性能。
第一方面,提供了一种传输信息的方法,包括:
确定至少一个终端设备的下行控制信道的时频资源,其中,该至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先频域再时域的方式映射;
通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
在本申请实施例中,网络设备在该第一控制区域内,按照先频域再时域的方式映射至少一个终端设备的下行控制信道的时频资源。这样,一个或多个下行控制信道可以映射到一个OFDM符号上,便于根据5G***的要求,施行例如波束赋形等传输方式,从而能够增加下行覆盖,提升***的性能。
在一些可能的实现方式中,该先频域再时域的方式包括:
先沿频域映射该第一控制区域内的第一个正交频分复用OFDM符号,再映射该第一控制区域内的下一个OFDM符号。
在一些可能的实现方式中,确定至少一个终端设备的下行控制信道的时频资源,包括:
根据以下至少一项确定该至少一个终端设备中的特定终端设备在该第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
若第一控制信道候选者对应的CCE资源未被分配,则将该第一控制信道候选者对应的CCE资源分配给该特定终端设备,若该第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给该特定终端设备;
在该至少一个终端设备都已分配CCE资源后,将该第一控制区域的CCE资源按照该先频域再时域的方式映射,得到该至少一个终端设备的下行控制信道的时频资源。
在一些可能的实现方式中,一个控制信道候选者对应的CCE资源在频域上是连续的。
在一些可能的实现方式中,该方法还包括:
向该至少一个终端设备发送控制区域配置信息,该控制区域配置信息用于指示该第一控制区域的配置。
在一些可能的实现方式中,该方法还包括:
向该至少一个终端设备中的特定终端设备发送第一搜索空间配置信息,该第一搜索空间配置信息用于指示该特定终端设备的下行控制信道的时频资源所在的OFDM符号。
在一些可能的实现方式中,该第一控制区域内的OFDM符号与波束序号关联,其中,特定波束序号对应的下行控制信道的时频资源位于该特定波束序号关联的OFDM符号上。
在一些可能的实现方式中,该方法还包括:
向该至少一个终端设备发送第二搜索空间配置信息,该第二搜索空间配置信息用于指示波束序号关联的OFDM符号。
在一些可能的实现方式中,该通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道,包括:
在该第一控制区域的至少一个OFDM符号上采用波束赋形,通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
第二方面,提供了一种传输信息的方法,包括:
确定至少一个终端设备的下行控制信道的时频资源,其中,该至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先时域再频域的方式映射;
通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
在本申请实施例中,网络设备在该第一控制区域内,按照先时域再频域的方式映射至少一个终端设备的下行控制信道的时频资源。这样,一个或多个下行控制信道可以映射到一个PRB上的不同OFDM符号上,便于控制信道资源复用,节约控制信道资源,从而能够提升***的性能。
在一些可能的实现方式中,该先时域再频域的方式包括:
先沿时域映射该第一控制区域内的第一个物理资源块PRB上的所有正交频分复用OFDM符号,再映射该第一控制区域内的下一个PRB上的所有OFDM符号。
在一些可能的实现方式中,确定至少一个终端设备的下行控制信道的时频资源,包括:
根据以下至少一项确定该至少一个终端设备中的特定终端设备在第一 控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
若第一控制信道候选者对应的CCE资源未被分配,则将该第一控制信道候选者对应的CCE资源分配给该特定终端设备,若该第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给该特定终端设备;
在该至少一个终端设备都已分配CCE资源后,将第一控制区域的CCE资源按照该先时域再频域的方式映射,得到该至少一个终端设备的下行控制信道的时频资源。
在一些可能的实现方式中,一个控制信道候选者对应的CCE资源在频域/时域上是连续的。
在一些可能的实现方式中,该方法还包括:
向该至少一个终端设备发送控制区域配置信息,该控制区域配置信息用于指示该第一控制区域的配置。
第三方面,提供了一种传输信息的方法,包括:
接收网络设备发送的配置信息,该配置信息指示***带宽内终端设备对应的第一控制区域的配置;
根据该配置信息,在该第一控制区域内检测该终端设备的下行控制信道。
在一些可能的实现方式中,根据该配置信息,在该第一控制区域内检测该终端设备的下行控制信道,包括:
根据该配置信息,确定该第一控制区域和该第一控制区域的映射方式;
根据以下至少一项确定该终端设备在该第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号或小区标识;
根据该至少一个控制信道候选者对应的CCE资源和该映射方式,检测该终端设备的下行控制信道。
在一些可能的实现方式中,该第一控制区域的映射方式为先频域再时域的方式,该第一控制区域包括一个或多个正交频分复用OFDM符号。
在一些可能的实现方式中,该第一控制区域的映射方式为先时域再频域的方式,该第一控制区域包括多个OFDM符号。
第四方面,提供了一种网络设备,包括执行第一方面或第一方面的任意可能的实现方式中的方法的模块。
第五方面,提供了一种网络设备,包括执行第二方面或第二方面的任意可能的实现方式中的方法的模块。
第六方面,提供了一种终端设备,包括执行第三方面或第三方面的任意可能的实现方式中的方法的模块。
第七方面,提供了一种网络设备。该网络设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式,或者第二方面或第二方面的任意可能的实现方式中的方法。
第八方面,提供了一种终端设备。该终端设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第三方面或第三方面的任意可能的实现方式中的方法。
第九方面,提供了一种计算机可读介质,用于存储计算机程序,该计算机程序包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的指令。
第十方面,提供了一种计算机可读介质,用于存储计算机程序,该计算机程序包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的指令。
第十一方面,提供了一种计算机可读介质,用于存储计算机程序,该计算机程序包括用于执行第三方面或第三方面的任意可能的实现方式中的方法的指令。
附图说明
图1是可应用本申请实施例的一种通信***的示意图。
图2是本申请实施例的资源集的示意图。
图3是本申请实施例的控制信道元素的示意图。
图4是本申请实施例的控制信道候选者的示意图。
图5是本申请一个实施例的传输信息的方法的示意性流程图。
图6是本申请一个实施例的映射方式的示意图。
图7是本申请另一个实施例的传输信息的方法的示意性流程图。
图8是本申请另一个实施例的映射方式的示意图。
图9是本申请又一个实施例的传输信息的方法的示意性流程图。
图10是本申请一个实施例的网络设备的示意性框图。
图11是本申请另一个实施例的网络设备的示意性框图。
图12是本申请一个实施例的终端设备的示意性框图。
图13是本申请又一个实施例的网络设备的示意性结构图。
图14是本申请另一个实施例的终端设备的示意性结构图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。
图1给出了本申请实施例应用的一种通信***的示意图。如图1所示,网络100可以包括网络设备102以及终端设备104、106、108、110、112和114,其中,网络设备与终端设备之间通过无线连接。应理解,图1仅以网络包括一个网络设备为例进行说明,但本申请实施例并不限于此,例如,网络还可以包括更多的网络设备;类似地,网络也可以包括更多的终端设备,并且网络设备还可以包括其它设备。
本申请结合终端设备描述了各个实施例。终端设备也可以指用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,简称为“PDA”)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,未来5G网络中的终端设备或者未来演进的公共陆 地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
本申请结合网络设备描述了各个实施例。网络设备可以是用于与终端设备通信的设备,该网络设备可以是GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA***中的基站(NodeB,NB),还可以是LTE***中的演进型基站(Evolutional Node B,eNB或eNodeB),还可以是云无线接入网络(Cloud Radio Access Network,CRAN)场景下的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等。
5G***的下行控制信道至少有两种,一种是公共控制信道,一种是终端设备配置(UE-specific)下行控制信道。公共控制信道是用来向所有终端设备或一部分终端设备广播一些公共信息。终端设备配置(UE-specific)下行控制信道是用来向指定的终端设备传送下行相关控制信息,比如有关数据传送的配置信息等。终端设备在下行的时域调度单元,如一个子隙或微子隙(slot or mini-slot)内通过检测终端设备配置的下行控制信息来判断网络是否有下行数据传送,并使用相关配置信息去解调下行数据。本申请实施例的技术方案可以应用于终端设备配置(UE-specific)下行控制信道。
和4G***不一样的是在5G***中,一个下行控制区域,又称控制资源集(control resource set),在频域上不是涵盖整个***带宽,而只是其中一部分频域资源。这个区域可以由若干在频域上连续或非连续的物理资源块(Physical Resource Block,PRB)组成。这是因为5G***的覆盖频段也许会很宽(尤其在高频段),这样让终端设备在整个频段上去检测控制信道需要耗费大量的终端设备资源。在时域上,下行控制区域也不是由一个时域调度单元内所有的OFDM符号组成,而是由一个或几个OFDM符号组成。一般来说这几个OFDM符号位于下行时域调度单元的开始。这样设计的考虑是为了让终端设备在检测完控制信号以后,有足够的时间去完成数据信道的解调,以满足一些应用的需要,尤其是低延时应用的要求。图2示出了这样一个资源集。
一般控制信道的传送经历过以下几个步骤,控制信息在末尾附加循环纠错码,然后通过控制信道编码,调制,预处理(如使用传输分集或波束赋形),然后在分配的物理资源上传送。
由于控制信道的负载量不同,编码后的码率也不同(根据信道质量和误 码率要求),一个下行控制信道可以用一个或几个控制信道元素(control channel element,CCE)来传送,如使用1,2,4,8,…个控制信道元素来传送,这也称为控制信道元素聚合等级(CCE aggregation level,CCE AL)。如图3所示.一个控制信道元素又可以由几个控制资源单元(control resource unit)构成,一个控制资源单元是由频域上的一个物理资源块(PRB)和时域上的一个(或几个)OFDM符号组成的一个时频资源(time-frequency resource),它可以看成是控制信道传输所使用的最小资源单元。
一个下行控制区域可以由多个终端设备共享,意味着它们的下行控制信道都将在这个下行控制区域中传送。一般来说,终端设备需要在时域调度单元内相应的下行控制区域里搜索盲检获得自己的下行控制信道。为了避免不同终端设备的下行控制信道在同一个下行控制区域里发生碰撞,发送给每个终端设备的下行控制信道需要在特定的资源上传送,终端设备也需在特定的资源上去搜索盲检属于自己的下行控制信道。这些特定的资源以及有可能在上面传送的不同下行控制信道候选者(control channel candidate),比如基于相同或不同的CCE AL的候选者,统称为终端设备下行控制信道的搜索空间(search space)。
图4示出了一个终端设备的基于相同或不同控制信道元素聚合等级的不同下行控制信道候选者的实例。比如基于CCE AL=1的候选者可能有8个,比如基于CCE AL=2的候选者可能有4个,比如基于CCE AL=4的候选者可能有2个,比如基于CCE AL=8的候选者可能有1个。这些候选者所用的资源可能完全重叠,也可能部分重叠,也可能不重叠。对于终端设备来说,它也许不知道网络侧采用了哪一个候选者(包括基于相同或不同控制信道元素聚合等级的候选者)来发送它的控制信道,所以它需要在所有可能的候选者的资源上通过盲检去检测属于它的控制信道。如果在所有可能的候选者上都没有检测到属于它的控制信号,终端设备只好假定网络侧在当前调度单元没有向它发送控制信号。
图5示出了根据本申请一个实施例的传输信息的方法500的示意性流程图。该方法500由网络设备执行,例如图1中的网络设备102。如图5所示,该方法500包括:
S510,确定至少一个终端设备的下行控制信道的时频资源,其中,该至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域 内按照先频域再时域的方式映射;
S520,通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
在本申请实施例中,第一控制区域为***带宽内的一个控制区域。网络设备在该第一控制区域内,按照先频域再时域的方式映射至少一个终端设备的下行控制信道的时频资源。这样,一个或多个下行控制信道可以映射到一个OFDM符号上,便于根据5G***的要求,施行例如波束赋形等传输方式,从而能够增加下行覆盖,提升***的性能。
可选地,该先频域再时域的方式包括:
先沿频域映射该第一控制区域内的第一个OFDM符号,再映射该第一控制区域内的下一个OFDM符号。
可选地,网络设备可以根据以下至少一项确定该至少一个终端设备中的特定终端设备在该第一控制区域内的至少一个控制信道候选者对应的CCE资源:该特定终端设备的无线网络临时标识(Radio Network Tempory Identity,RNTI)、当前的时域调度单元序号、载频序号、CCE AL、波束序号和/或小区标识;
若第一控制信道候选者对应的CCE资源未被分配,则将该第一控制信道候选者对应的CCE资源分配给该特定终端设备,若该第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给该特定终端设备;
在该至少一个终端设备都已分配CCE资源后,将该第一控制区域的CCE资源按照该先频域再时域的方式映射,得到该至少一个终端设备的下行控制信道的时频资源。
具体而言,网络设备将第一控制区域所有可能的下行控制信道资源按控制信道元素为单位排列;再根据上述的一个或多个参数确定特定终端设备在第一控制区域里某一个控制信道候选者对应的控制信道元素资源。这些资源是连续的控制信道元素(如整个信道使用N个CCE,则使用N个连续CCE资源)。
如果一个控制信道候选者对应的控制信道元素资源的部分或全部已经被分配给了其他终端设备,网络设备可以继续确定下一个控制信道候选者对应的控制信道元素资源,直到发现可以用来传送一个控制信道候选者的没有 被使用过的控制信道元素资源。
网络侧设备重复以上步骤以确定每个有可能被调度的终端设备的下行控制信道候选者可以使用的资源。
然后,网络设备按照先频域再时域的方式将该第一控制区域的CCE资源(分配的和没有分配的)按顺序映射到物理资源上。例如,先沿频域填满第一控制区域内的第一个OFMD符号,再沿频域填满第一控制区域的第二个OFDM符号,依此类推直至结束。
在采用先频域再时域的方式时,一个控制信道候选者对应的CCE资源在频域上是连续的。
在本实施例中,某个终端设备的下行控制信道的时频资源可以位于一个OFDM符号上。也就是说,对于该终端设备来说,控制区域可以是一个OFDM符号。
如图6所示,假定某个特定终端分配的控制区域(也许和其他终端共享的)是第一个OFDM符号(虽然整个控制资源集区域包括三个OFDM符号),网络设备将所有这个时频资源区里的控制资源元素按顺序排列,然后根据上述规则确定该终端设备控制信道资源的起始控制资源元素索引,同时根据控制信息的负载和码率来确定需要几个控制资源元素(即确定控制资源元素聚合等级)。例如,CCE AL=4,即需要4个CCE,网络设备可将连续的4个CCE分配给该终端设备。等所有的终端设备的资源分配都进行完毕,网络设备可以将所有的CCE按顺序沿频域映射到控制资源集里的第一个OFDM符号。另外,如果配置了多个OFDM符号的话,可以先沿频域映射第一个OFDM符号,然后再沿频域映射第二个OFDM符号,依此类推。
本实施例的方案可以用在波束***中,将一个或多个控制信道映射到一个OFDM符号上传送,便于施行波束赋形,增加下行覆盖和性能。
具体地,网络设备可以在该第一控制区域的至少一个OFDM符号上采用波束赋形,通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
应理解,在本申请实施例中,该第一控制区域可以包括一个或多个OFDM符号。也就是说,网络设备可以以一个OFDM符号的控制区域实施本申请实施例的技术方案,也可以以多个OFDM符号的控制区域实施本申请实施例的技术方案。对于多个OFDM符号的控制区域,由于采用先频域 再时域的方式,一个或几个终端设备的下行控制信道的时频资源会位于一个OFDM符号上。
可选地,网络设备还可以向该至少一个终端设备发送控制区域配置信息,该控制区域配置信息用于指示该第一控制区域的配置。
具体而言,该控制区域配置信息可以指示该第一控制区域的频域配置和时域配置。
由于特定终端设备的下行控制信道的时频资源位于该第一控制区域的一个OFDM符号上,该第一控制区域的频域配置也可以作为特定终端控制信道的搜索空间区域的频域配置。
可选地,网络设备还可以向该至少一个终端设备中的特定终端设备发送第一搜索空间配置信息,该第一搜索空间配置信息用于指示该特定终端设备的下行控制信道的时频资源所在的OFDM符号。此为特定终端控制信道的搜索空间区域的时域配置。
可选地,该第一控制区域的配置可以由高层信令进行半静态的配置。特定终端控制信道的搜索空间区域的时域配置可以由高层信令进行半静态的配置,也可以由物理层信令进行动态配置,如使用物理层的公共信道进行广播。
可选地,该第一控制区域内的OFDM符号可以与波束序号关联,其中,特定波束序号对应的下行控制信道的时频资源位于该特定波束序号关联的OFDM符号上。
可选地,网络设备还可以向该至少一个终端设备发送第二搜索空间配置信息,该第二搜索空间配置信息用于指示波束序号关联的OFDM符号。
通过将波束序号与OFDM符号关联,可以给不同波束配置相应的搜索空间。例如,可以采用表1的方式进行配置。该配置可以用高层信令进行半静态的配置。
表1
配置取值 含义
00 第一个OFDM符号(频域映射)
01 第二个OFDM符号(频域映射)
10 第三个OFDM符号(频域映射)
11 时域映射
上述表1中,“时域映射”可以表示下面实施例中描述的先时域再频域的映射方式。
图7示出了根据本申请另一个实施例的传输信息的方法700的示意性流程图。该方法700由网络设备执行,例如图1中的网络设备102。如图7所示,该方法700包括:
S710,确定至少一个终端设备的下行控制信道的时频资源,其中,该至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先时域再频域的方式映射;
S720,通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
在本申请实施例中,第一控制区域为***带宽内的一个控制区域。网络设备在该第一控制区域内,按照先时域再频域的方式映射至少一个终端设备的下行控制信道的时频资源。这样,一个或多个下行控制信道可以映射到一个PRB上的不同OFDM符号上,便于控制信道资源复用,节约控制信道资源,从而能够提升***的性能。
可选地,该先时域再频域的方式包括:
先沿时域映射该第一控制区域内的第一个物理资源块PRB上的所有正交频分复用OFDM符号,再映射该第一控制区域内的下一个PRB上的所有OFDM符号。
可选地,网络设备可以根据以下至少一项确定该至少一个终端设备中的特定终端设备在第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
若第一控制信道候选者对应的CCE资源未被分配,则将该第一控制信道候选者对应的CCE资源分配给该特定终端设备,若该第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给该特定终端设备;
在该至少一个终端设备都已分配CCE资源后,将第一控制区域的CCE资源按照该先时域再频域的方式映射,得到该至少一个终端设备的下行控制 信道的时频资源。
具体而言,网络设备将第一控制区域所有可能的下行控制信道资源按控制信道元素为单位排列;再根据上述的一个或多个参数确定特定终端设备在第一控制区域里某一个控制信道候选者对应的控制信道元素资源。这些资源是连续的控制信道元素(如整个信道使用N个CCE,则使用N个连续CCE资源)。
如果一个控制信道候选者对应的控制信道元素资源的部分或全部已经被分配给了其他终端设备,网络设备可以继续确定下一个控制信道候选者对应的控制信道元素资源,直到发现可以用来传送一个控制信道候选者的没有被使用过的控制信道元素资源。
网络侧设备重复以上步骤以确定其他终端设备的下行控制信道候选者可以使用的资源。
然后,网络设备按照先时域再频域的方式将该第一控制区域的CCE资源(分配的和没有分配的)按顺序映射到物理资源上。例如,先沿时域填满第一控制区域的一个PRB内的所有分配给控制信道的OFDM符号(可以按控制资源单元为单位来填),再沿时域填满第一控制区域的下一个PRB内的所有分配给控制信道的OFDM符号,依此类推直至结束。
可选地,一个控制信道候选者对应的CCE资源在频域/时域上是连续的。
如图8所示,假定某个特定终端分配的控制区域(也许和其他终端共享的)是整个控制资源集区域(包括三个OFDM符号),网络设备将所有这个时频资源区里的控制资源元素(CCE)按顺序排列,然后根据上述规则确定该终端控制信道资源的起始控制资源元素索引,同时根据控制信息的负载量和码率来确定需要几个控制资源元素(即确定控制资源元素聚合等级)。例如,CCE AL=4,即需要4个CCE,网络设备可将连续的4个CCE分配给该终端设备。等所有需要调度的终端设备的控制信道资源分配都完成了以后,网络设备可以将所有的CCE分解成若干个资源单元(如图示中的4个),假定每个资源单元占用一个频域资源单元块(PRB)和一个时域OFDM符号的时频资源,网络设备按顺序将控制资源元素(及其包含的资源单元)先沿时域顺序映射到控制资源集里第一个PRB上的所有OFDM符号(依照符号索引从小到大顺序)上,然后再顺序映射到控制资源集里第二个PRB上所有OFDM符号上,并依此类推完成所有映射。
本实施例的方案可以用在非波束***中,将一个或多个控制信道映射到一个PRB上的不同OFDM符号上传送,便于控制信道资源复用,节约控制信道资源。
可选地,网络设备还可以向该至少一个终端设备发送控制区域配置信息,该控制区域配置信息用于指示该第一控制区域的配置。
该控制区域配置信息可以指示该第一控制区域的频域配置和时域配置。
可选地,该第一控制区域的配置可以由高层信令进行半静态的配置。
以上从网络设备侧描述了本申请实施例的传输信息的方法,下面从终端设备侧描述本申请实施例的传输信息的方法。
图9示出了根据本申请实施例的传输信息的方法900的示意性流程图。该方法900由终端设备执行,例如图1中的终端设备。如图9所示,该方法900包括:
S910,接收网络设备发送的配置信息,该配置信息指示***带宽内终端设备对应的第一控制区域的配置;
S920,根据该配置信息,在该第一控制区域内检测该终端设备的下行控制信道。
可选地,终端设备可以根据该配置信息,确定该第一控制区域和该第一控制区域的映射方式;
根据以下至少一项确定该终端设备在该第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号或小区标识;
根据该至少一个控制信道候选者对应的CCE资源和该映射方式,检测该终端设备的下行控制信道。
可选地,该第一控制区域的映射方式为先频域再时域的方式,该第一控制区域包括一个或多个正交频分复用OFDM符号。
可选地,该第一控制区域的映射方式为先时域再频域的方式,该第一控制区域包括多个OFDM符号。
具体而言,终端设备可以根据该配置信息,确定控制区域的大小,映射方式和总的CCE数目;再根据上述一个或多个参数确定该终端设备在该控制区域内的某一个控制信道候选者对应的控制信道元素资源;再根据确定的 某一个控制信道候选者对应的控制信道元素资源和映射方式,对控制信道进行盲检;如果盲检不成功,终端设备重复上述步骤再去检测其他的控制信道候选者直至检测到属于自己的控制信道,如不然,终端设备可以假设网络设备没有发送属于自己的控制信道。
应理解,在本申请实施例中,网络设备侧描述的网络设备和终端设备之间的交互及相关特性、功能等与终端设备侧的描述相应,为了简洁,在此不再赘述。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
上文详细描述了根据本申请实施例的传输信息的方法,下面将描述根据本申请实施例的网络设备和终端设备。应理解,本申请实施例的网络设备和终端设备可以执行前述本申请实施例的各种方法,即以下各种设备的具体工作过程,可以参考前述方法实施例中的对应过程。
图10示出了根据本申请一个实施例的网络设备1000的示意性框图。如图10所示,该网络设备1000包括:
处理模块1010,确定至少一个终端设备的下行控制信道的时频资源,其中,该至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先频域再时域的方式映射;
收发模块1020,用于通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
可选地,该先频域再时域的方式包括:
先沿频域映射该第一控制区域内的第一个正交频分复用OFDM符号,再映射该第一控制区域内的下一个OFDM符号。
可选地,该处理模块1010具体用于,
根据以下至少一项确定该至少一个终端设备中的特定终端设备在该第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
若第一控制信道候选者对应的CCE资源未被分配,则将该第一控制信道候选者对应的CCE资源分配给该特定终端设备,若该第一控制信道候选 者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给该特定终端设备;
在该至少一个终端设备都已分配CCE资源后,将该第一控制区域的CCE资源按照该先频域再时域的方式映射,得到该至少一个终端设备的下行控制信道的时频资源。
可选地,一个控制信道候选者对应的CCE资源在频域上是连续的。
可选地,该收发模块1020还用于,向该至少一个终端设备发送控制区域配置信息,该控制区域配置信息用于指示该第一控制区域的配置。
可选地,该收发模块1020还用于,向该至少一个终端设备中的特定终端设备发送第一搜索空间配置信息,该第一搜索空间配置信息用于指示该特定终端设备的下行控制信道的时频资源所在的OFDM符号。
可选地,该第一控制区域内的OFDM符号与波束序号关联,其中,特定波束序号对应的下行控制信道的时频资源位于该特定波束序号关联的OFDM符号上。
可选地,该收发模块1020还用于,向该至少一个终端设备发送第二搜索空间配置信息,该第二搜索空间配置信息用于指示波束序号关联的OFDM符号。
可选地,该收发模块1020具体用于,在该第一控制区域的至少一个OFDM符号上采用波束赋形,通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
图11示出了根据本申请另一个实施例的网络设备1100的示意性框图。如图11所示,该网络设备1100包括:
处理模块1110,用于确定至少一个终端设备的下行控制信道的时频资源,其中,该至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先时域再频域的方式映射;
收发模块1120,用于通过该至少一个终端设备的下行控制信道的时频资源发送该至少一个终端设备的下行控制信道。
可选地,该先时域再频域的方式包括:
先沿时域映射该第一控制区域内的第一个物理资源块PRB上的所有正交频分复用OFDM符号,再映射该第一控制区域内的下一个PRB上的所有OFDM符号。
可选地,该处理模块1110具体用于,
根据以下至少一项确定该至少一个终端设备中的特定终端设备在第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
若第一控制信道候选者对应的CCE资源未被分配,则将该第一控制信道候选者对应的CCE资源分配给该特定终端设备,若该第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给该特定终端设备;
在该至少一个终端设备都已分配CCE资源后,将第一控制区域的CCE资源按照该先时域再频域的方式映射,得到该至少一个终端设备的下行控制信道的时频资源。
可选地,一个控制信道候选者对应的CCE资源在频域/时域上是连续的。
可选地,该收发模块1120还用于,向该至少一个终端设备发送控制区域配置信息,该控制区域配置信息用于指示该第一控制区域的配置。
根据本申请实施例的网络设备1000和网络设备1100可对应于根据本申请实施例的传输信息的方法中的网络设备,其中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,为了简洁,在此不再赘述。
图12示出了根据本申请实施例的终端设备1200的示意性框图。如图12所示,该终端设备1200包括:
收发模块1210,用于接收网络设备发送的配置信息,该配置信息指示***带宽内该终端设备对应的第一控制区域的配置;
处理模块1220,用于根据该配置信息,在该第一控制区域内检测该终端设备的下行控制信道。
可选地,该处理模块1220具体用于,
根据该配置信息,确定该第一控制区域和该第一控制区域的映射方式;
根据以下至少一项确定该终端设备在该第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:该终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号或小区标识;
根据该至少一个控制信道候选者对应的CCE资源和该映射方式,检测该终端设备的下行控制信道。
可选地,该第一控制区域的映射方式为先频域再时域的方式,该第一控制区域包括一个或多个正交频分复用OFDM符号。
可选地,该第一控制区域的映射方式为先时域再频域的方式,该第一控制区域包括多个OFDM符号。
根据本申请实施例的终端设备1200可对应于根据本申请实施例的传输信息的方法中的终端设备,并且终端设备1200中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,为了简洁,在此不再赘述。
图13示出了本申请的又一实施例提供的网络设备的结构,包括至少一个处理器1302(例如CPU),至少一个网络接口1305或者其他通信接口,和存储器1306。这些部件之间通信连接。处理器1302用于执行存储器1306中存储的可执行模块,例如计算机程序。存储器1306可能包含高速随机存取存储器(RAM:Random Access Memory),也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1305(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。
在一些实施方式中,存储器1306存储了程序13061,处理器1302执行程序13061,用于执行前述本申请各种实施例中的方法。
图14示出了本申请的又一实施例提供的终端设备的结构,包括至少一个处理器1402(例如CPU),至少一个网络接口1405或者其他通信接口,和存储器1406。这些部件之间的通信连接。处理器1402用于执行存储器1406中存储的可执行模块,例如计算机程序。存储器1406可能包含高速随机存取存储器(RAM:Random Access Memory),也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1405(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。
在一些实施方式中,存储器1406存储了程序14061,处理器1402执行程序14061,用于执行前述本申请各种实施例中的方法
应理解,本申请实施例中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例,而非限制本申请实施例的范围。
应理解,在本申请实施例中,术语“和/或”仅仅是一种描述关联对象的 关联关系,表示可以存在三种关系。例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、计算机软件或者二者的结合来实现,为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另外,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接,也可以是电的,机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分,或者该技术方 案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到各种等效的修改或替换,这些修改或替换都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求的保护范围为准。

Claims (36)

  1. 一种传输信息的方法,其特征在于,包括:
    确定至少一个终端设备的下行控制信道的时频资源,其中,所述至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先频域再时域的方式映射;
    通过所述至少一个终端设备的下行控制信道的时频资源发送所述至少一个终端设备的下行控制信道。
  2. 根据权利要求1所述的方法,其特征在于,所述先频域再时域的方式包括:
    先沿频域映射所述第一控制区域内的第一个正交频分复用OFDM符号,再映射所述第一控制区域内的下一个OFDM符号。
  3. 根据权利要求1或2所述的方法,其特征在于,所述确定至少一个终端设备的下行控制信道的时频资源,包括:
    根据以下至少一项确定所述至少一个终端设备中的特定终端设备在所述第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:所述特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
    若第一控制信道候选者对应的CCE资源未被分配,则将所述第一控制信道候选者对应的CCE资源分配给所述特定终端设备,若所述第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给所述特定终端设备;
    在所述至少一个终端设备都已分配CCE资源后,将所述第一控制区域的CCE资源按照所述先频域再时域的方式映射,得到所述至少一个终端设备的下行控制信道的时频资源。
  4. 根据权利要求3所述的方法,其特征在于,一个控制信道候选者对应的CCE资源在频域上是连续的。
  5. 根据权利要求1至4中任一项所述的方法,其特征在于,其特征在于,所述方法还包括:
    向所述至少一个终端设备发送控制区域配置信息,所述控制区域配置信息用于指示所述第一控制区域的配置。
  6. 根据权利要求1至5中任一项所述的方法,所述方法还包括:
    向所述至少一个终端设备中的特定终端设备发送第一搜索空间配置信息,所述第一搜索空间配置信息用于指示所述特定终端设备的下行控制信道的时频资源所在的OFDM符号。
  7. 根据权利要求1至6中任一项所述的方法,其特征在于,所述第一控制区域内的OFDM符号与波束序号关联,其中,特定波束序号对应的下行控制信道的时频资源位于所述特定波束序号关联的OFDM符号上。
  8. 根据权利要求7所述的方法,其特征在于,所述方法还包括:
    向所述至少一个终端设备发送第二搜索空间配置信息,所述第二搜索空间配置信息用于指示波束序号关联的OFDM符号。
  9. 根据权利要求1至8中任一项所述的方法,其特征在于,所述通过所述至少一个终端设备的下行控制信道的时频资源发送所述至少一个终端设备的下行控制信道,包括:
    在所述第一控制区域的至少一个OFDM符号上采用波束赋形,通过所述至少一个终端设备的下行控制信道的时频资源发送所述至少一个终端设备的下行控制信道。
  10. 一种传输信息的方法,其特征在于,包括:
    确定至少一个终端设备的下行控制信道的时频资源,其中,所述至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先时域再频域的方式映射;
    通过所述至少一个终端设备的下行控制信道的时频资源发送所述至少一个终端设备的下行控制信道。
  11. 根据权利要求10所述的方法,其特征在于,所述先时域再频域的方式包括:
    先沿时域映射所述第一控制区域内的第一个物理资源块PRB上的所有正交频分复用OFDM符号,再映射所述第一控制区域内的下一个PRB上的所有OFDM符号。
  12. 根据权利要求10或11所述的方法,其特征在于,所述确定至少一个终端设备的下行控制信道的时频资源,包括:
    根据以下至少一项确定所述至少一个终端设备中的特定终端设备在第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:所述特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、 载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
    若第一控制信道候选者对应的CCE资源未被分配,则将所述第一控制信道候选者对应的CCE资源分配给所述特定终端设备,若所述第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给所述特定终端设备;
    在所述至少一个终端设备都已分配CCE资源后,将第一控制区域的CCE资源按照所述先时域再频域的方式映射,得到所述至少一个终端设备的下行控制信道的时频资源。
  13. 根据权利要求12所述的方法,其特征在于,一个控制信道候选者对应的CCE资源在频域/时域上是连续的。
  14. 根据权利要求10至13中任一项所述的方法,其特征在于,所述方法还包括:
    向所述至少一个终端设备发送控制区域配置信息,所述控制区域配置信息用于指示所述第一控制区域的配置。
  15. 一种传输信息的方法,其特征在于,包括:
    接收网络设备发送的配置信息,所述配置信息指示***带宽内终端设备对应的第一控制区域的配置;
    根据所述配置信息,在所述第一控制区域内检测所述终端设备的下行控制信道。
  16. 根据权利要求15所述的方法,其特征在于,所述根据所述配置信息,在所述第一控制区域内检测所述终端设备的下行控制信道,包括:
    根据所述配置信息,确定所述第一控制区域和所述第一控制区域的映射方式;
    根据以下至少一项确定所述终端设备在所述第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:所述终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号或小区标识;
    根据所述至少一个控制信道候选者对应的CCE资源和所述映射方式,检测所述终端设备的下行控制信道。
  17. 根据权利要求15或16所述的方法,其特征在于,所述第一控制区域的映射方式为先频域再时域的方式,所述第一控制区域包括一个或多个正 交频分复用OFDM符号。
  18. 根据权利要求15或16所述的方法,其特征在于,所述第一控制区域的映射方式为先时域再频域的方式,所述第一控制区域包括多个OFDM符号。
  19. 一种网络设备,其特征在于,包括:
    处理模块,确定至少一个终端设备的下行控制信道的时频资源,其中,所述至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先频域再时域的方式映射;
    收发模块,用于通过所述至少一个终端设备的下行控制信道的时频资源发送所述至少一个终端设备的下行控制信道。
  20. 根据权利要求19所述的网络设备,其特征在于,所述先频域再时域的方式包括:
    先沿频域映射所述第一控制区域内的第一个正交频分复用OFDM符号,再映射所述第一控制区域内的下一个OFDM符号。
  21. 根据权利要求19或20所述的网络设备,其特征在于,所述处理模块具体用于,
    根据以下至少一项确定所述至少一个终端设备中的特定终端设备在所述第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:所述特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
    若第一控制信道候选者对应的CCE资源未被分配,则将所述第一控制信道候选者对应的CCE资源分配给所述特定终端设备,若所述第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给所述特定终端设备;
    在所述至少一个终端设备都已分配CCE资源后,将所述第一控制区域的CCE资源按照所述先频域再时域的方式映射,得到所述至少一个终端设备的下行控制信道的时频资源。
  22. 根据权利要求21所述的网络设备,其特征在于,一个控制信道候选者对应的CCE资源在频域上是连续的。
  23. 根据权利要求19至22中任一项所述的网络设备,其特征在于,所述收发模块还用于,向所述至少一个终端设备发送控制区域配置信息,所述 控制区域配置信息用于指示所述第一控制区域的配置。
  24. 根据权利要求19至23中任一项所述的网络设备,其特征在于,所述收发模块还用于,向所述至少一个终端设备中的特定终端设备发送第一搜索空间配置信息,所述第一搜索空间配置信息用于指示所述特定终端设备的下行控制信道的时频资源所在的OFDM符号。
  25. 根据权利要求19至24中任一项所述的网络设备,其特征在于,所述第一控制区域内的OFDM符号与波束序号关联,其中,特定波束序号对应的下行控制信道的时频资源位于所述特定波束序号关联的OFDM符号上。
  26. 根据权利要求25所述的网络设备,其特征在于,所述收发模块还用于,向所述至少一个终端设备发送第二搜索空间配置信息,所述第二搜索空间配置信息用于指示波束序号关联的OFDM符号。
  27. 根据权利要求19至26中任一项所述的网络设备,其特征在于,所述收发模块具体用于,在所述第一控制区域的至少一个OFDM符号上采用波束赋形,通过所述至少一个终端设备的下行控制信道的时频资源发送所述至少一个终端设备的下行控制信道。
  28. 一种网络设备,其特征在于,包括:
    处理模块,用于确定至少一个终端设备的下行控制信道的时频资源,其中,所述至少一个终端设备的下行控制信道的时频资源在***带宽内的第一控制区域内按照先时域再频域的方式映射;
    收发模块,用于通过所述至少一个终端设备的下行控制信道的时频资源发送所述至少一个终端设备的下行控制信道。
  29. 根据权利要求28所述的网络设备,其特征在于,所述先时域再频域的方式包括:
    先沿时域映射所述第一控制区域内的第一个物理资源块PRB上的所有正交频分复用OFDM符号,再映射所述第一控制区域内的下一个PRB上的所有OFDM符号。
  30. 根据权利要求28或29所述的网络设备,其特征在于,所述处理模块具体用于,
    根据以下至少一项确定所述至少一个终端设备中的特定终端设备在第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:所述特定终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、 载频序号、控制信道元素聚合等级CCE AL、波束序号和/或小区标识;
    若第一控制信道候选者对应的CCE资源未被分配,则将所述第一控制信道候选者对应的CCE资源分配给所述特定终端设备,若所述第一控制信道候选者对应的CCE资源已被分配,则将未被分配的下一个控制信道候选者对应的CCE资源分配给所述特定终端设备;
    在所述至少一个终端设备都已分配CCE资源后,将第一控制区域的CCE资源按照所述先时域再频域的方式映射,得到所述至少一个终端设备的下行控制信道的时频资源。
  31. 根据权利要求30所述的网络设备,其特征在于,一个控制信道候选者对应的CCE资源在频域/时域上是连续的。
  32. 根据权利要求28至31中任一项所述的网络设备,其特征在于,所述收发模块还用于,向所述至少一个终端设备发送控制区域配置信息,所述控制区域配置信息用于指示所述第一控制区域的配置。
  33. 一种终端设备,其特征在于,包括:
    收发模块,用于接收网络设备发送的配置信息,所述配置信息指示***带宽内所述终端设备对应的第一控制区域的配置;
    处理模块,用于根据所述配置信息,在所述第一控制区域内检测所述终端设备的下行控制信道。
  34. 根据权利要求33所述的终端设备,其特征在于,所述处理模块具体用于,
    根据所述配置信息,确定所述第一控制区域和所述第一控制区域的映射方式;
    根据以下至少一项确定所述终端设备在所述第一控制区域内的至少一个控制信道候选者对应的控制信道元素CCE资源:所述终端设备的无线网络临时标识RNTI、当前的时域调度单元序号、载频序号、控制信道元素聚合等级CCE AL、波束序号或小区标识;
    根据所述至少一个控制信道候选者对应的CCE资源和所述映射方式,检测所述终端设备的下行控制信道。
  35. 根据权利要求33或34所述的终端设备,其特征在于,所述第一控制区域的映射方式为先频域再时域的方式,所述第一控制区域包括一个或多个正交频分复用OFDM符号。
  36. 根据权利要求33或34所述的终端设备,其特征在于,所述第一控制区域的映射方式为先时域再频域的方式,所述第一控制区域包括多个OFDM符号。
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