CN117411597A - Communication method and device, terminal equipment, network equipment and chip - Google Patents

Communication method and device, terminal equipment, network equipment and chip Download PDF

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Publication number
CN117411597A
CN117411597A CN202210779762.0A CN202210779762A CN117411597A CN 117411597 A CN117411597 A CN 117411597A CN 202210779762 A CN202210779762 A CN 202210779762A CN 117411597 A CN117411597 A CN 117411597A
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CN
China
Prior art keywords
cell
value
information
pdcch
scheduling
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CN202210779762.0A
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Chinese (zh)
Inventor
周欢
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Application filed by Beijing Ziguang Zhanrui Communication Technology Co Ltd filed Critical Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority to CN202210779762.0A priority Critical patent/CN117411597A/en
Priority to PCT/CN2023/105758 priority patent/WO2024008096A1/en
Publication of CN117411597A publication Critical patent/CN117411597A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

Abstract

The application discloses a communication method and device, terminal equipment, network equipment and a chip, and relates to the technical field of communication; the method comprises the following steps: the network equipment transmits a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is determined based on at least one of the number of PDCCH candidates, a non-overlapping Channel Control Element (CCE) and the size of Downlink Control Information (DCI), and at least one of the number of PDCCH candidates, the non-overlapping CCE and the size of the DCI is determined based on the value of the first information; correspondingly, the terminal equipment monitors the PDCCH. The method and the device introduce the first information and the association relation between the value of each first information and each group of co-scheduling cell group, so that when the PDCCH is monitored later to obtain the value of a certain first information, a certain group of co-scheduling cell group is indicated from the cells aggregated by the value of the certain first information, and multi-cell scheduling is realized.

Description

Communication method and device, terminal equipment, network equipment and chip
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a communications method and apparatus, a terminal device, a network device, and a chip.
Background
Standard protocols established by the third generation partnership project (3rd generation partnership project,3GPP) introduce a carrier aggregation (Carrier Aggregation, CA) mechanism. Wherein in the carrier aggregation mechanism, one cell supports either self-carrier scheduling only (self-carrier scheduling) or cross-carrier scheduling only (cross-carrier sheduling).
Currently, downlink control information (Downlink Control Information, DCI) carried by a physical downlink control channel (Physical Downlink Control Channel, PDCCH) transmitted on one cell can only schedule data transmission in one cell (one carrier or one component carrier (Component Carrier, CC)).
Since one DCI can only schedule data transmission in one cell, in a carrier aggregation scenario, especially when the number of aggregated cells is large and the traffic is large, this will cause the terminal device to consume a large amount of power to monitor (blind test) the PDCCH of each cell. For example, when there are 16 cells aggregated and the downlink traffic is large, if downlink data needs to be scheduled on the 16 cells and one DCI can only schedule data transmission in one cell, the terminal device needs to monitor PDCCHs of each cell separately, and in total, needs to monitor 16 PDCCHs (1 PDCCH carries one DCI), which causes the terminal device to spend a lot of power consumption on monitoring the PDCCHs. In this regard, further research is required on how to reduce the listening complexity of the PDCCH to save power consumption.
Disclosure of Invention
The application provides a communication method and device, terminal equipment, network equipment and a chip, which are used for realizing PDCCH monitoring under the condition of reducing the monitoring complexity of PDCCH so as to save power consumption.
In a first aspect, a communication method according to the present application includes:
monitoring a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is determined based on at least one of the number of PDCCH candidates, a non-overlapping Channel Control Element (CCE) and the size of Downlink Control Information (DCI), and at least one of the number of PDCCH candidates, the non-overlapping CCE and the size of DCI is determined based on the value of first information;
wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
It can be seen that the present application introduces the first information, and indicates a set of co-scheduling cell combinations, which are at least one cell that is simultaneously scheduled in a carrier aggregated cell, by a value of the first information. And then, determining at least one of the number of PDCCH candidates, the number of non-overlapping CCEs and the number of DCI sizes of the values of each piece of first information so as to monitor the PDCCH. In this way, when the PDCCH is monitored subsequently to obtain a value of a certain first information, a certain group of co-scheduling cell combinations are indicated from the cells in the carrier aggregation through the value of the certain first information, so that the cells in the certain group of co-scheduling cell combinations are scheduled simultaneously, multi-cell scheduling is further realized, and the monitoring complexity of the PDCCH is reduced through multi-cell scheduling to save power consumption.
In a second aspect, a communication method according to the present application includes:
transmitting a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is determined based on at least one of the number of PDCCH candidates, a non-overlapping Channel Control Element (CCE) and the size of Downlink Control Information (DCI), and at least one of the number of PDCCH candidates, the non-overlapping CCE and the size of DCI is determined based on the value of first information;
wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
In a third aspect, a communication device according to the present application includes:
a monitoring unit, configured to monitor a physical downlink control channel PDCCH, where the PDCCH is determined based on at least one of a PDCCH candidate number, a non-overlapping channel control element CCE, and a downlink control information DCI size number, and at least one of the PDCCH candidate number, the non-overlapping CCE, and the DCI size number is determined based on a value of first information;
wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
A fourth aspect is a communication device of the present application, comprising:
a sending unit, configured to send a physical downlink control channel PDCCH, where the PDCCH is determined based on at least one of a PDCCH candidate number, a non-overlapping channel control element CCE, and a downlink control information DCI size number, and at least one of the PDCCH candidate number, the non-overlapping CCE, and the DCI size number is determined based on a value of first information;
wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
In a fifth aspect, the steps in the method as designed in the first aspect are applied to a terminal device or a terminal device.
In a sixth aspect, the steps in the method according to the second aspect are applied in a network device or a network device.
A seventh aspect is a terminal device according to the present application, comprising a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect.
An eighth aspect is a network device according to the present application, including a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps in the method designed in the second aspect.
A ninth aspect is a chip of the present application, including a processor, where the processor performs the steps in the method designed in the first aspect or the second aspect.
In a tenth aspect, the present application is a chip module, including a transceiver component and a chip, where the chip includes a processor, and the processor executes the steps in the method designed in the first aspect or the second aspect.
An eleventh aspect is a computer readable storage medium of the present application, in which a computer program or instructions are stored, which when executed, implement the steps in the method devised in the first aspect or the second aspect.
A twelfth aspect is a computer program product according to the present application, comprising a computer program or instructions, wherein the computer program or instructions, when executed, implement the steps of the method devised in the first aspect or the second aspect.
A thirteenth aspect is a communication system of the present application, including the terminal device in the seventh aspect and the network device in the eighth aspect.
The technical effects of the second to thirteenth aspects may be seen by the technical effects of the first aspect, and are not described here again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a carrier aggregation cell according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of yet another carrier aggregation cell according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of yet another carrier aggregation cell according to an embodiment of the present application;
FIG. 5 is a flow chart of a communication method according to an embodiment of the present application;
fig. 6 is a functional unit block diagram of a communication device according to an embodiment of the present application;
fig. 7 is a functional unit block diagram of still another communication apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
Fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
Detailed Description
It should be understood that the terms "first," "second," and the like, as used in embodiments of the present application, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, software, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the embodiment of the application, "and/or", the association relation of the association objects is described, which means that three relations can exist. For example, a and/or B may represent three cases: a alone; both A and B are present; b alone. Wherein A, B can be singular or plural.
In the embodiment of the present application, the symbol "/" may indicate that the associated object is an or relationship. In addition, the symbol "/" may also denote a divisor, i.e. performing a division operation. For example, A/B may represent A divided by B.
In the embodiments of the present application, "at least one item(s)" or the like means any combination of these items, including any combination of single item(s) or plural item(s), meaning one or more, and plural means two or more. For example, at least one (one) of a, b or c may represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b and c. Wherein each of a, b, c may be an element or a set comprising one or more elements.
The 'equal' in the embodiment of the application can be used with the greater than the adopted technical scheme, can also be used with the lesser than the adopted technical scheme, and is applicable to the lesser than the adopted technical scheme. When the combination is equal to or greater than the combination, the combination is not less than the combination; when the value is equal to or smaller than that used together, the value is not larger than that used together.
In the embodiments of the present application, "of", "corresponding" and "corresponding" are referred to as "indicated" and "indicated" may be sometimes used in combination. It should be noted that the meaning of what is meant is consistent when de-emphasizing the differences.
In the embodiment of the present application, "connection" refers to various connection modes such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way.
The "network" in the embodiments of the present application may be expressed as the same concept as the "system", i.e. the communication system is a communication network.
The "size" in the embodiments of the present application may be expressed as the same concept as the "length" or the like.
The following describes related content, concepts, meanings, technical problems, technical solutions, advantageous effects and the like related to the embodiments of the present application.
1. Communication system, terminal device and network device
1. Communication system
The technical solution of the embodiment of the application can be applied to various communication systems, for example: general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced Long Term Evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based Access to Unlicensed Spectrum on unlicensed spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum on unlicensed spectrum (NR-U) system, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wi-Fi), 6th Generation (6 th-Generation, 6G) communication system, or other communication system, etc.
It should be noted that, the number of connections supported by the conventional communication system is limited and easy to implement. However, with the development of communication technology, the communication system may support not only a conventional communication system, but also, for example, a device-to-device (D2D) communication, a machine-to-machine (machine to machine, M2M) communication, a machine type communication (machine type communication, MTC), an inter-vehicle (vehicle to vehicle, V2V) communication, an internet of vehicles (vehicle to everything, V2X) communication, a narrowband internet of things (narrow band internet of things, NB-IoT) communication, and so on, so the technical solution of the embodiment of the present application may also be applied to the above-described communication system.
In addition, the technical solution of the embodiment of the present application may be applied to beamforming (beamforming), carrier aggregation (carrier aggregation, CA), dual connectivity (dual connectivity, DC), or independent (SA) deployment scenarios, and the like.
In this embodiment of the present application, the spectrum used for communication between the terminal device and the network device, or the spectrum used for communication between the terminal device and the terminal device may be an authorized spectrum or an unlicensed spectrum, which is not limited. In addition, unlicensed spectrum may be understood as shared spectrum, and licensed spectrum may be understood as unshared spectrum.
Since the embodiments of the present application describe various embodiments in connection with terminal devices and network devices, the terminal devices and network devices involved will be specifically described below.
2. Terminal equipment
The terminal device may be a device having a transceiving function, and may also be referred to as a terminal, a User Equipment (UE), a remote terminal device (remote UE), a relay UE, an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a mobile device, a user terminal device, an intelligent terminal device, a wireless communication device, a user agent, or a user equipment. The relay device is a terminal device capable of providing a relay service to other terminal devices (including a remote terminal device).
For example, the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned automatic driving, a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), or the like.
As another example, the terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next generation communication system (e.g., NR communication system, 6G communication system) or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN), etc., without limitation.
In some possible implementations, the terminal device may be deployed on land, including indoors or outdoors, hand-held, wearable, or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); may be deployed in the air (e.g., aircraft, balloons, satellites, etc.).
In some possible implementations, the terminal device may include means for wireless communication functions, such as a chip system, a chip module. By way of example, the system-on-chip may include a chip, and may include other discrete devices.
3. Network equipment
The network device may be a device with a transceiver function, and is configured to communicate with the terminal device.
In some possible implementations, the network device may be responsible for radio resource management (radio resource management, RRM), quality of service (quality of service, qoS) management, data compression and encryption, data transceiving, etc. on the air side.
In some possible implementations, the network device may be a Base Station (BS) in a communication system or a device deployed in a radio access network (radio access network, RAN) for providing wireless communication functions.
For example, the network device may be an evolved node B (evolutional node B, eNB or eNodeB) in the LTE communication system, a next generation evolved node B (next generation evolved node B, ng-eNB) in the NR communication system, a next generation node B (next generation node B, gNB) in the NR communication system, a Master Node (MN) in the dual connectivity architecture, a second node or Secondary Node (SN) in the dual connectivity architecture, or the like, without particular limitation.
In some possible implementations, the network device may also be a device in a Core Network (CN), such as an access and mobility management function (access and mobility management function, AMF), a user plane function (user plane function, UPF), etc.; but also Access Points (APs) in WLAN, relay stations, communication devices in future evolved PLMN networks, communication devices in NTN networks, etc.
In some possible implementations, the network device may include a device, such as a system-on-chip, a chip module, having means to provide wireless communication functionality for the terminal device. The chip system may include a chip, for example, or may include other discrete devices.
In some possible implementations, the network device may communicate with an internet protocol (Internet Protocol, IP) network. Such as the internet, a private IP network or other data network, etc.
In some possible implementations, the network device may be a single node to implement the functionality of the base station or the network device may include two or more separate nodes to implement the functionality of the base station. For example, network devices include Centralized Units (CUs) and Distributed Units (DUs), such as gNB-CUs and gNB-DUs. Further, in other embodiments of the present application, the network device may further comprise an active antenna unit (active antenna unit, AAU). Wherein a CU implements a portion of the functions of the network device and a DU implements another portion of the functions of the network device. For example, a CU is responsible for handling non-real-time protocols and services, implementing the functions of a radio resource control (radio resource control, RRC) layer, a service data adaptation (service data adaptation protocol, SDAP) layer, and a packet data convergence (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (medium access control, MAC) and Physical (PHY) layers. In addition, the AAU can realize partial physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, in this network deployment, higher layer signaling (e.g., RRC signaling) may be considered to be transmitted by the DU or transmitted by both the DU and the AAU. It is understood that the network device may include at least one of CU, DU, AAU. In addition, the CU may be divided into network devices in the RAN, or may be divided into network devices in the core network, which is not particularly limited.
In some possible implementations, the network device may be any one of multiple sites that performs coherent cooperative transmission (coherent joint transmission, cqt) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, which is not particularly limited. The multi-station coherent cooperative transmission may be a multi-station joint coherent transmission, or different data belonging to the same physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) are sent from different stations to the terminal device, or the multiple stations are virtualized into one station for transmission, and names with the same meaning specified in other standards are also applicable to the application, i.e. the application does not limit the names of the parameters. Stations in the multi-station coherent cooperative transmission may be remote radio heads (Remote Radio Head, RRH), transmission receiving points (transmission and reception point, TRP), network devices, and the like, which are not particularly limited.
In some possible implementations, the network device may be any one of multiple sites that perform incoherent cooperative transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, which is not limited specifically. The multi-station incoherent cooperative transmission may be a multi-station joint incoherent transmission, or different data belonging to the same PDSCH are sent from different stations to the terminal device, and other standards prescribe the same meaning of the names are also applicable to the application, i.e. the application does not limit the names of the parameters. The stations in the multi-station incoherent cooperative transmission may be RRHs, TRPs, network devices, etc., which are not particularly limited.
In some possible implementations, the network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (high elliptical orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.
In some possible implementations, the network device may serve a cell, and terminal devices in the cell may communicate with the network device over transmission resources (e.g., spectrum resources). The cells may be macro cells (macro cells), small cells (small cells), urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells), and the like.
4. Description of the examples
An exemplary description of a communication system according to an embodiment of the present application is provided below.
Exemplary, a network architecture of a communication system according to an embodiment of the present application may refer to fig. 1. As shown in fig. 1, communication system 10 may include a network device 110 and a terminal device 120. The terminal device 120 may communicate with the network device 110 wirelessly.
Fig. 1 is merely an illustration of a network architecture of a communication system, and the network architecture of the communication system according to the embodiments of the present application is not limited thereto. For example, in the embodiment of the present application, a server or other device may also be included in the communication system. For another example, in an embodiment of the present application, a communication system may include a plurality of network devices and/or a plurality of terminal devices.
2. PDCCH (physical downlink control channel)
The payload (payload) carried on the PDCCH is referred to as downlink control information (downlink control information, DCI), that is, the PDCCH carries DCI.
One carrier may have multiple control-resource sets (CORESETs) that map resource elements to control channel elements (Control Channel Element, CCEs), one or more CCEs are aggregated together to carry PDCCHs, and a terminal device may perform a blind check on a search space (search space) to determine if the network has a PDCCH to send to itself.
CCEs are basic resource elements constituting a PDCCH. One PDCCH may use 1, 2, 4, 8, 16 CCEs. The number of CCEs used may be referred to as aggregation level (aggregation level, AL). That is, one PDCCH may be aggregated from several CCEs.
One CCE may include 6 Resource element groups (Resource Element Group, REGs), and each REG may include one or more Resource Blocks (RBs) on one OFDM symbol.
CORESET is a new proposed concept of a set of time-frequency domain resources for 5G NR. This is because in 5G NR, the transmission bandwidth of the communication system is relatively large, and the support capability of the terminal devices is not the same. In order to adapt to different bandwidths, blind detection complexity of the PDCCH is reduced, so that time-frequency domain resource scheduling of the PDCCH is constrained through CORESET.
CORESET may have multiple search spaces, with one search space being a set of candidate control channels made up of CCEs having the same aggregation level. Since CCEs have a plurality of aggregation levels, one terminal device may correspond to a plurality of search spaces.
3. Carrier aggregation
1. Component carrier (Component Carrier, CC), primary Cell (PCell), secondary Cell (SCell)
In carrier aggregation, multiple carriers may be aggregated together while serving one terminal device. In this way, the terminal device can obtain a larger service bandwidth and a larger transmission rate through carrier aggregation. Wherein, the carrier aggregation does not need to be continuous in the frequency domain of all carriers, and even does not need to be limited in the same frequency band.
Carrier aggregation of the NR standard can support aggregation of up to 16 carriers. The carriers may be different carrier bandwidths or may be different duplex modes.
In addition, the aggregated carriers may also be referred to as component carriers.
For example, the carriers are aggregated with 5 carriers, which are component carrier 0 (CC 0), component carrier 1 (CC 1), component carrier 2 (CC 2), component carrier 3 (CC 3), and component carrier 4 (CC 4), respectively.
For terminal equipment, the terminal equipment supporting carrier aggregation can transmit and receive data on a plurality of component carriers at the same time; terminal devices that do not support carrier aggregation may transmit and receive data on one component carrier.
In the description of carrier aggregation by the NR standard, the concept of a cell is often used. Embodiments of the present application may refer to or consider one carrier (or component carrier) as one cell. Thus, an aggregated carrier may also be understood as an aggregated cell. Similarly, a terminal device supporting carrier aggregation may transmit and receive data on multiple carriers (or component carriers) at the same time, that is, a terminal device supporting carrier aggregation may transmit and receive data in multiple cells at the same time.
For example, carriers are aggregated with 5 carriers, and the 5 carriers are CC0, CC1, CC2, CC3, and CC4, respectively. Wherein CC0 is cell 0, or CC0 corresponds to cell 0 (cell 0 corresponds to CC 0). Similarly, CC1 is cell 1, CC2 is cell 2, CC3 is cell 3, and CC4 is cell 4.
Of these aggregated cells, only one cell is referred to as the primary cell, while the other cells are referred to as secondary cells. The primary cell may be a cell used by the terminal device to access the network, and the secondary cell may be configured by the network after the terminal device enters the connected state. The network can quickly activate or deactivate the secondary cells to meet the changing traffic demands. Different terminal devices may configure different cells as the primary cell.
2. Self-carrier scheduling (self-carrier scheduling)
Currently, in a carrier aggregation scenario, one cell supports either only self-carrier scheduling or only cross-carrier scheduling.
In the embodiment of the present application, the self-carrier scheduling may be expressed as that the scheduling grant and the transmission data of the cell are sent on the same carrier.
For example, if the cell 0 supports the self-carrier scheduling (or the cell 0 is configured as the self-carrier scheduling), the terminal device may monitor the PDCCH of the cell 0 on the CC0 corresponding to the cell 0, and obtain the relevant scheduling grant through the DCI carried by the PDCCH. Finally, the terminal device grants transmission of the transmission data on CC0 through the scheduling. It can be seen that the scheduling grant and transmission data for cell 0 is sent on CC 0.
3. Cross-carrier scheduling (cross-carrier sheduling)
In the embodiment of the application, cross-carrier scheduling may be expressed as that scheduling grants and transmission data of a cell are sent on different carriers.
It should be noted that, if one cell multi-carrier schedules another cell, the other cell may be said to support cross-carrier scheduling.
For example, if the cell 0 can schedule the cell 1 across carriers, the terminal device can only monitor the PDCCH on the CC0 corresponding to the cell 0, and obtain the scheduling grant of the cell 1 through the DCI carried by the PDCCH (or, the DCI can only schedule the data transmission in the CC1 corresponding to the cell 1), and the terminal device cannot monitor the PDCCH on the CC1 corresponding to the cell 1 to obtain the scheduling grant of the terminal device. Finally, the terminal device grants transmission of the transmission data on the CC1 through the scheduling. It can be seen that the scheduling grant for cell 0 is sent on CC0, while the transmission data for cell 1 is sent on CC 1. At this time, the embodiment of the present application can be said to say that cell 1 supports cross-carrier scheduling (or cell 1 is configured as cross-carrier scheduling).
4. Carrier indication field (carrier indicator field, CIF)
Note that, DCI may include CIF. The higher layer signaling may indicate whether to configure cross-carrier scheduling.
For example, the network may configure the cross-carrier scheduling of a certain cell by higher layer parameters (e.g., cross-carrier scheduling configuration in RRC connection reconfiguration RRCConnectionReconfiguration). When cross-carrier scheduling is configured, it is necessary to indicate, by CIF, for which component carrier the DCI carrying the CIF is.
In addition, if the terminal equipment on one serving cell is configured with a cross carrier schedule configuration, the CIF value is 0 or CIF-inputschedule cell value in the cross carrier schedule configuration. When the CIF value is 0, the serving cell is indicated to be self-carrier scheduling. When the CIF takes other values, this means that the serving cell is cross-carrier scheduling.
4. Monitoring capability of PDCCH (Blind detection capability)
The terminal device listens for a set of PDCCH candidates (candidates) in one or more coreets on each active serving cell configured with PDCCH listening according to the corresponding set of search spaces. Wherein, listening (or blind detection) may be understood as receiving each PDCCH candidate and decoding according to the listening DCI format.
The PDCCH candidates of the present application may also be referred to as PDCCH Blind Decoding (BD).
The monitoring capability of the PDCCH is an important consideration in the design of the PDCCH protocol due to constraints of hardware computing resources, time delay and power consumption of the terminal device and consideration of scheduling flexibility.
1. The value n of CIF CI CCE index group (i.e., a group of CCEs) corresponding to PDCCH candidate
The value n corresponding to CIF CI DL BWP activated time slots of serving cells of (a)PDCCH candidate of search space set (search space set) s of CORESETP in +.>PDCCH candidate->The CCE index of the corresponding aggregation level (aggregation level) L is given by:
wherein,representing PDCCH candidate indexes;
p represents the CORESRT index;
s represents a search space set index;
for any common search space (common search space, CSS),
for a terminal device specific search space (UE specific search space, USS),Y p,-1 ＝n RNTI not equal to 0, a in the case of pmod3=0 p =39827, a in the case of pmod3=1 p =39829, a in the case of pmod3=2 p ＝39839，D＝65537；
i＝0,…,L-1；
N CCE,p Is the number of CCEs, the number of CCEs is CORESET p Numbering from 0 to N CCE,p -1；
n CI Is the value of CIF, if the terminal device configures CFI for the serving cell listening to PDCCH through cross carrier scheduling configuration (cross carrier scheduling configuration); otherwise, for any CSS, n CI ＝0；
Wherein (1)>Is that the terminal device is configured to monitor the data of n CI The number of PDCCH candidates of the aggregation level L of the search space set s of the corresponding service cell;
for any of the CSSs,
for one USS, the message is sent to the server,n, which is all configurations of aggregation level L of s of a search space set CI Middle->Is a maximum value of (a).
In summary, the value of one CIF may correspond to the CCE index group of the PDCCH candidate, and the CCE index may determine the location for listening to the PDCCH.
2. Whether or not PDCCH candidates are counted into monitoring
Corresponding to n CI Search space set s using a set of CCEs of aggregation level L in coreetp on active DL BWP of serving cell of (c) j PDCCH candidates of (2)If there is one PDCCH candidate +.>Or a PDCCH candidate +.> And PDCCH candidate +.>Or PDCCH candidate->With PDCCH candidate->CCEs with the same set of aggregation level L, the same scrambling code and the same DCI format size (DCI format size), then PDCCH candidate +.>Not counting listens (is not counted for monitoring); that is, PDCCH candidate +.>Or PDCCH candidate->With PDCCH candidate->Is the same PDCCH candidate, or PDCCH candidate +.>Or PDCCH candidate->With PDCCH candidate->Only one calculation is needed.
Otherwise, PDCCH candidatesCounting into a snoop (is counted for monitoring); that is, PDCCH candidate +. >Or PDCCH candidate->With PDCCH candidate->Not the same PDCCH candidate.
3. DCI size number (DCI size number)
The terminal device expects to listen to PDCCH candidates for up to 4 DCI formats (DCI formats), including up to 3 DCI formats, where the CRC is scrambled by the C-RNTI of each serving cell. The terminal device calculates the size (size) number of DCI formats for each serving cell according to the number of PDCCH candidates configured in the search space set of the corresponding active DL BWP.
The number of sizes of DCI formats may be referred to as DCI size number.
In addition, DCI may be transmitted in CSS and USS. In addition, various types of DCI formats are defined in the Rel-15 NR system, and for example, the DCI formats include DCI format 0_0 (different common search space and UE search space length), DCI format 0_1, DCI format 1_0 (different common search space and UE search space length), DCI format 1_1, DCI format 2_0, DCI format 2_1, DCI format2_2, DCI format2_3, and the like.
In this way, since the DCI formats are more, the number of DCI sizes that the terminal device needs to blindly detect in one time-frequency resource (e.g. one slot) exceeds the DCI size budget (DCI size). For example: rel-15 requires a DCI size of 4 and a DCI size of 3 scrambled with a C-RNTI. If 5 kinds of DCI with size are configured in one slot, that is, if the DCI size is exceeded, the solution is to align (align) DCI format 0_0/0_1size in CSS with DCI format 0_0/0_1size in USS. The size alignment may be to add padding bits to a DCI format having a smaller size so that the sizes of the DCI format and the padding bits are identical to each other.
4. Time slot (slot)
If the terminal device is provided with a monitoring capability configuration parameter (monitoringcapability config) for one serving cell, and monitoringcapability config=r15 monitoringcapability, the terminal device may obtain an indication (indication), and determine the maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs for the serving cell in each slot (slot) through the indication.
5. Maximum number of PDCCH candidates
In the standard protocol specified by 3GPP, the terminal device defines a maximum number of PDCCH candidates for the serving cell in each slot. The maximum number of PDCCH candidates may be referred to as the maximum number of PDCCH candidates, and is not particularly limited.
Illustratively, at different subcarrier spacing (SCS), for a serving cell in each slot on DL BWP with subcarrier spacing configuration (SCS configuration) mu e {0,1,2,3}, maximum number of PDCCH candidatesAs shown in table 1. />
TABLE 1
Wherein, if μ=0, thenIf μ=1, then->The rest of the steps are known in turn.
6. Maximum number of non-overlapping CCEs
The maximum number of non-overlapping CCEs may be referred to as the maximum number of non-overlapping CCEs, and is not particularly limited.
If one or more CCEs of a PDCCH candidate correspond to different CORESET indexes, then these CCEs are non-overlapping, i.e., non-overlapping CCEs.
If the starting symbols for receiving the respective PDCCH candidates for one or more CCEs of the PDCCH candidates are different, these CCEs are non-overlapping, i.e., non-overlapping CCEs.
Exemplary, at different subcarrier spacing, for a serving cell in each slot on a DL BWP with subcarrier spacing configuration με {0,1,2,3}, the maximum number of non-overlapping CCEsAs shown in table 2.
TABLE 2
Wherein, if μ=0, thenIf μ=1, then->The rest of the steps are known in turn.
5. Communication method
In combination with the above, in the carrier aggregation scenario, one cell supports either only self-carrier scheduling or only cross-carrier scheduling. Currently, DCI carried by PDCCH sent on one cell can only schedule data transmission in one cell (one CC or one carrier), which results in that in carrier aggregation scenario, especially when the number of aggregated cells is large and the traffic is large, the terminal device needs to spend a great deal of power consumption to monitor (blind test) PDCCH of each cell.
In order to reduce the complexity of PDCCH monitoring to save power consumption, one DCI is introduced in the present application to support simultaneous scheduling of at least one cell from within a carrier aggregated cell, i.e., multi-cell scheduling (multi-cell scheduling), so that the monitoring complexity of PDCCH is reduced to save power consumption through multi-cell scheduling.
For example, when 16 cells are aggregated and the downlink traffic is large, if downlink data needs to be scheduled on the 16 cells and one DCI can schedule data transmission in the 16 cells, the terminal device only needs to monitor 1 PDCCH (1 PDCCH carries one DCI). Compared with a DCI capable of scheduling data transmission in one cell, the method and the device can schedule data transmission in the 16 cells through the DCI, and can reduce monitoring complexity of the PDCCH, so that terminal equipment can reduce a large amount of power consumption in monitoring the PDCCH, namely, the complexity of monitoring the PDCCH is reduced to save the power consumption.
In order to realize multi-cell scheduling, the application introduces first information and configuration information, indicates a group of co-scheduling cell combinations (co-scheduled cell combination) through the value of one first information, wherein one group of co-scheduling cell combinations are at least one cell which is simultaneously scheduled in a carrier aggregation cell, and configures the association relation between the value of each first information and each group of co-scheduling cell combinations through the configuration information.
In order to realize PDCCH monitoring, the present application also needs to determine at least one of the number of PDCCH candidates, the number of non-overlapping CCEs, and the number of DCI sizes of the first information, so as to perform PDCCH monitoring.
In this way, when the PDCCH is monitored subsequently to obtain the value of certain first information, a certain group of co-scheduling cell combinations are indicated from the cells aggregated by the carrier through the value of certain first information, so that the cells in the certain group of co-scheduling cell combinations are simultaneously scheduled, and multi-cell scheduling is further realized.
The technical schemes, beneficial effects, concepts and the like according to the embodiments of the present application are described below.
1. Multi-cell scheduling
In the embodiment of the present application, the multi-cell scheduling may mean that one DCI may schedule data transmission in multiple cells at the same time. However, in cross-carrier scheduling and self-carrier scheduling, one DCI can only schedule data transmission within one cell.
The multi-cell scheduling may also be referred to as multi-carrier scheduling.
In addition, one cell multi-carrier schedules other cells, which can be said to support multi-cell scheduling.
For example, cell 0 (CC 0) may multi-cell schedule cell 1 (CC 1) and cell 2 (CC 2), and then cell 1 (CC 1) and cell 2 (CC 2) may support multi-cell scheduling.
In addition, in combination with the content in the foregoing "three, carrier aggregation", in the embodiment of the present application, one cell may support multi-cell scheduling, may support multi-cell scheduling and self-carrier scheduling at the same time, and may support multi-cell scheduling and cross-carrier scheduling at the same time.
2. Carrier aggregated cell, scheduling cell, and scheduled cell
In combination with the foregoing "three, carrier aggregation", one cell may be referred to or regarded as one carrier or one CC, and a terminal device supporting carrier aggregation may simultaneously transmit and receive data in multiple cells.
The carrier aggregation cell may be a plurality of cells, or a plurality of carriers.
In addition, if one cell can multicarrier schedule another cell, the one cell can be referred to or regarded as a "scheduling cell" and the other cell can be referred to or regarded as a "scheduled cell". That is, the scheduled cell supports multi-cell scheduling.
For example, if cell 0 (CC 0) is a multi-cell scheduling cell 1 (CC 1), then cell 0 (CC 0) is a scheduling cell and cell 1 (CC 1) is a scheduled cell.
3. Configuration information, first information, co-scheduling cell group
1) Configuration information
In the embodiment of the present application, the configuration information may be used to configure an association relationship between a value of each first information and each group of co-scheduling cell groups. Of course, the configuration information may also be described in other terms, which are not particularly limited.
In some possible implementations, the configuration information may be carried by higher layer signaling, e.g., the higher layer signaling may be one of RRC signaling, system information, terminal equipment specific (UE specific) signaling, etc.
It should be noted that, the higher layer signaling may be transmitted during a cell search, a cell residence, a cell access, an initial access, a random access, and the like.
2) First information, co-scheduling cell group
In the embodiment of the application, a value of the first information may be used to indicate a set of co-scheduling cell combinations. Of course, the first information may be described in other terms, which are not particularly limited.
The co-scheduling cell combination may be at least one cell that is simultaneously scheduled within a carrier aggregated cell. Of course, the co-scheduling cell combination may also be described in other terms, which are not particularly limited.
It can be seen that the present application may implement simultaneous scheduling of at least one cell by the first information, i.e. multi-cell scheduling by the first information.
Note that, the first information of the present application may be carried by DCI. Thus, when the terminal equipment blindly detects the DCI carrying the first information, a group of co-scheduling cell combinations which are supported by the DCI for scheduling can be determined through the value of the first information, so that the DCI supports simultaneous scheduling of a plurality of cells.
In order to implement DCI to carry the first information, the first information of the present application may be one field or two subfields in the DCI.
The following will specifically describe each.
3) The first information is one sub-segment in DCI
It should be noted that, the value of the one field may be used to indicate a set of the co-scheduling cell combinations, and the value of the one field corresponds to a CCE index set of PDCCH candidates.
In some possible implementations, the one field may be a CIF, and may be a newly defined field, which is not particularly limited.
a) The one field is CIF
The present application will specifically describe taking the CIF as an example.
Illustratively, the indication of co-scheduling cell combinations by CIF in DCI may be in two ways:
mode a:
based on the existing CIF, the CIF is expanded, so that the expanded CIF can be used for indicating the co-scheduling cell combination. That is, the extended CIF may be used to indicate both single cell scheduling and multi-cell scheduling. Under the condition that the CIF value is from small to large, the small CIF value is used for indicating single-cell scheduling, and the large CIF value is used for indicating multi-cell scheduling.
In order to ensure that the co-scheduling cell combination is indicated by the CIF, the present application may appropriately increase the bit number of the CIF, or increase the value of the CIF. For example, the bit number of CIF is increased from 3 bits to 4 bits or 5 bits, etc.
For the expanded CIF, a specific description will be given below taking an association relationship between the value of each CIF and each co-scheduling cell group as an example.
TABLE 3 Table 3
For example, the network device configures, to the terminal device, an association relationship between the value of each CIF and each co-scheduling cell group through the configuration information, and as shown in table 3, the carrier aggregated cells include CC0 (cell 0), CC1 (cell 1), CC2 (cell 2), and CC3 (cell 3). Wherein,
if cif=0, that is, the value of CIF is 0, the DCI carrying the CIF supports scheduling CC0, and CC0 is self-carrier scheduling; that is, cif=0 is used to indicate a set of co-scheduled cell combinations, which are CC0;
if cif=1, the DCI carrying the CIF supports scheduling CC1, and CC1 is cross-carrier scheduling; that is, cif=1 is used to indicate a set of co-scheduled cell combinations, which are CC1;
if cif=2, the DCI carrying the CIF supports scheduling CC2, and CC2 is cross-carrier scheduling; that is, cif=2 is used to indicate a set of co-scheduled cell combinations, which are CC2;
if cif=3, the DCI carrying the CIF supports scheduling CC3, and CC3 is cross-carrier scheduling; that is, cif=3 is used to indicate a set of co-scheduled cell combinations, which are CC3;
If cif=4, the DCI carrying the CIF supports simultaneous scheduling of CC0 and CC1; that is, cif=4 is used to indicate a set of co-scheduled cell combinations, which are CC0 and CC1;
if cif=5, the DCI carrying the CIF supports simultaneous scheduling of CC1 and CC2; that is, cif=5 is used to indicate a set of co-scheduled cell combinations, which are CC1 and CC2;
if cif=6, the DCI carrying the CIF supports simultaneous scheduling of CC0, CC1, CC2 and CC3; that is, cif=6 is used to indicate a set of co-scheduled cell combinations of CC0, CC1, CC2, and CC3;
if cif=7, the DCI carrying the CIF supports simultaneous scheduling of CC2 and CC3; that is, cif=7 is used to indicate a set of co-scheduled cell combinations, which are CC2 and CC3.
Mode B:
the CIF in the mode can be used for indicating the single-cell scheduling and the multi-cell scheduling, and the CIF used for indicating the single-cell scheduling can be separated from the CIF used for indicating the multi-cell scheduling. In particular, the DCI formats carrying CIFs may be distinguished.
For example, if the DCI format is existing, and the existing DCI format includes DCI1_1/1_2/0_1/0_2, the CIF carried by the existing DCI format is used to indicate single-cell scheduling; if the DCI format is newly defined, if the newly defined DCI format is DCI 1_X/0_X, the CIF carried by the newly defined DCI format is used to indicate multi-cell scheduling.
For CIF carried by the newly defined DCI format, the following specifically describes an association relationship between the value of each CIF and each co-scheduling cell group.
For example, the network device configures, to the terminal device, an association relationship between the value of each CIF and each co-scheduling cell group through the configuration information, and as shown in table 4, the carrier aggregated cells include CC0 (cell 0), CC1 (cell 1), CC2 (cell 2), and CC3 (cell 3). Wherein,
if the value of CIF carried by the newly defined DCI format is 0, i.e. cif=0, the DCI supports simultaneous scheduling of CC0 and CC3; that is, cif=0 is used to indicate a set of co-scheduled cell combinations, which are CC0 and CCC3;
and the rest are analogized in order and are not repeated.
TABLE 4 Table 4
b) The one field is a newly defined field
It should be noted that, unlike the above, a new definition field may be added to the DCI, where the new definition field is used to indicate co-scheduling cell combination, that is, the definition field is used to indicate multi-cell scheduling. At this time, similar to the above-described "mode B", a description thereof will be omitted.
For example, taking the newly defined field as the co-scheduling cell group indication field (co-scheduled cell combination indication field), the CIF value in table 4 is replaced with the value of the co-scheduling cell group indication field.
4) The first information is two fields in DCI
It should be noted that, in this manner, the value of the first field (for convenience of distinguishing description, the first field is used to represent one of the two fields) in the two fields in the DCI may be used to indicate a plurality of groups of co-scheduling cell combinations, and the value of the first field may correspond to a CCE index group of a PDCCH candidate.
The value of the second field of the two fields in the DCI (the second field is used to represent the other of the two fields for ease of distinguishing the description) may be used to indicate a set of co-scheduled cell combinations from the sets of co-scheduled cell combinations indicated by the first field.
In some possible implementations, the first field may be a CIF or a newly defined field, and the second field may be a newly defined field, which is not particularly limited.
It should be noted that the second field may be similar to that in the above "manner B", which will not be described again.
In some possible implementations, the values of the first field may correspond to the values of the plurality of second fields.
For example, taking the first field as CIF and the second field as co-scheduling cell group indication field (co-scheduled cell combination indication field) as an example, as shown in table 5, DCI carries CIF and co-scheduling cell group indication field, and the carrier aggregated cells include CC0, CC1, CC2 and CC3. Wherein,
If cif=1 in DCI and the value of the co-scheduling cell group indication field is 0 (000), the DCI supports simultaneous scheduling of CC0 and CC3; that is, cif=1 and the value of the co-scheduling cell group indication field is 0, for indicating a set of co-scheduling cell combinations, which are CC0 and CC3;
if cif=1 in DCI and the value of the co-scheduling cell group indication field is 1 (001), the DCI supports simultaneous scheduling of CC1 and CC3; that is, cif=1 and the value of the co-scheduling cell group indication field is 1, for indicating a set of co-scheduling cell combinations, which are CC1 and CC3;
and the rest are analogized in order and are not repeated.
TABLE 5
The value n of the '1 and the CIF' is combined CI The value of one CIF may correspond to the CCE index group of the PDCCH candidate, corresponding to the content of the CCE index group of the PDCCH candidate. Since the value of one CIF may be used to indicate multiple sets of co-scheduled cell combinations, the multiple sets of co-scheduled cell combinations may share the same CCE index set.
4. CCE index of PDCCH candidate corresponding to value of first information
The value n of the '1 and the CIF' is combined CI As can be seen from the "CCE index group corresponding to PDCCH candidates", the value of the first information in the present application may correspond to the CCE index group of PDCCH candidates. Wherein, the value of one first information may correspond to a CCE index group of PDCCH candidates, and the CCE index may determine a location for listening to the PDCCH.
In addition, the CCE index group corresponding to the value of the first information may be the PDCCH candidate of the first information of the search space. If the values of the first information are different, the indexes of the search spaces may also be different.
5. Cells configured with search space exist in co-scheduling cell combinations
It should be noted that, to ensure PDCCH monitoring, the network device may configure a search space for cells aggregated by carriers. In this regard, a search space for scheduling PDCCH of the co-scheduled cell combination may be configured on one or more cells among the carrier aggregated cells. That is, there are cells in the co-scheduled cell combination that are configured with a search space. In this way, the terminal device may only need to correspondingly count the PDCCH candidate number/the non-overlapping CCE number/the DCI size number in the cell configured with the search space.
6. Cells having values configured with first information exist in co-scheduling cell combinations
It should be noted that, in order to ensure PDCCH monitoring, the network device may configure the value of the first information to the cell of carrier aggregation. In this regard, the value of the first information for scheduling the co-scheduled cell combination may be configured on one or more of the cells of the carrier aggregation. That is, there may be cells in the co-scheduled cell combination configured with the value of the first information. In this way, the terminal device may only need to perform blind detection on the PDCCH candidates of the first information to determine whether the network has a PDCCH corresponding to the co-scheduling cell combination to send to itself.
7. PDCCH monitoring
In order to ensure PDCCH monitoring, the network device configures information related to CORESET, a search space set, CCEs with a certain aggregation level, association relations between values of each first information and groups of co-scheduling cells, and the like to the terminal device. In this regard, the terminal device may blindly test the PDCCH on the PDCCH candidate of the value of the first information of the search space until the DCI carrying the first information is blindly tested.
In specific implementation, the terminal device of the present application may determine at least one of the number of PDCCH candidates, the number of non-overlapping CCEs, and the number of DCI sizes of the first information to perform PDCCH monitoring. That is, the PDCCH candidate number/non-overlapping CCE number/DCI size number is determined according to the value of the first information.
For example, in table 4, the terminal device needs to determine at least one of the PDCCH candidate number, the non-overlapping CCE number, and the DCI size number of cif=0 to 7, respectively, for PDCCH listening. Then, if the terminal device detects DCI in at least one of the PDCCH candidate number, the non-overlapping CCE number, and the DCI size number of the search space with cif=4, the DCI carries CIF with cif=4, so that the DCI schedules the group of co-scheduling cell combinations indicated by cif=4, that is, the DCI schedules CC0, CC1, and CC2 simultaneously.
In determining the PDCCH candidate number/non-overlapping CCE number/DCI size number, the PDCCH candidate number/non-overlapping CCE number/DCI size number may be determined for a search space of each cell in a set of co-scheduled cell combinations, may be determined for a search space of any cell in a set of co-scheduled cell combinations, or may be determined for a search space of a part of cells in a set of co-scheduled cell combinations.
The following will specifically explain the case.
Case 1:
1) Configuring search space and value of first information
In "case 1", the network device may configure the search space of the same index to each cell in a set of co-scheduled cell combinations indicated by the value of the first information X (X is a certain value) (for convenience of distinguishing description, the set of co-scheduled cell combinations are "first co-scheduled cell combinations"), and configure the same value of the first information to each cell.
2) Determining PDCCH candidate number/non-overlapping CCE number/DCI size number
In contrast, each cell in the first co-scheduling cell combination needs the number of PDCCH candidates/the number of non-overlapping CCEs/the number of DCI sizes of the search space of the own cell with the value X of the first information.
That is, the PDCCH candidate number/non-overlapping CCE number/DCI size number of the search spaces of each cell in the first co-scheduling cell combination is determined according to the value X of the first information.
For example, as shown in connection with table 3, the carrier aggregated cells include CC0, CC1, CC2, and CC3, and in fig. 2, the network device is configured with search space 1 and cif=6 for each cell in the set of co-scheduled cell combinations indicated by cif=6. Therefore, CC0 is configured with search space 1 and cif=6, CC1 is configured with search space 1 and cif=6, CC2 is configured with search space 1 and cif=6, and CC3 is configured with search space 1 and cif=6. For this, the terminal device needs to determine the PDCCH candidate number/the non-overlapping CCE number/the DCI size number of search space 1 of CC0 with cif=6, determine the PDCCH candidate number/the non-overlapping CCE number/the DCI size number of search space 1 with cif=6, and determine the PDCCH candidate number/the non-overlapping CCE number/the DCI size number of search space 1 with cif=6 with CC 3.
3) Number of PDCCH candidates/number of CCEs
In combination with the above-mentioned content of "2, whether PDCCH candidates are counted in listening" or not, the number of PDCCH candidates/the number of CCEs in the search space of each cell needs to be calculated only once, and it can be understood that, for the value X of the first information, PDCCH candidates having the same set of aggregation levels, the same scrambling code and the same DCI format size are regarded as one PDCCH candidate.
4) Number of PDCCH candidates of search space of each cell in the first co-scheduling cell combination
In order to avoid the terminal device from monitoring the PDCCH candidate number of the search space of each cell in the first co-scheduling cell combination, the present application may adopt the following manner:
mode 1:
the terminal equipment determines the maximum value in the PDCCH candidate number of the search space of each cell, and monitors PDCCH according to the maximum value.
TABLE 6
For example, as shown in connection with table 3, the carrier aggregated cells include CC0, CC1, CC2, and CC3, and in table 6, there are the following:
the number of PDCCH candidates for the search space of CCEs with an aggregation level of 2 (al=2) for CC0 is 1;
the number of PDCCH candidates for the search space of CCEs with an aggregation level of 4 (al=4) for CC0 is 2;
the number of PDCCH candidates for the search space of CCEs with an aggregation level of 8 (al=8) for CC0 is 3;
the PDCCH candidate number of the search space of CCEs with an aggregation level of 16 (al=16) of CC0 is 2;
the number of PDCCH candidates for the search space of CCEs with an aggregation level of 2 (al=2) for CC1 is 2;
the number of PDCCH candidates for the search space of CCEs with an aggregation level of 4 (al=4) for CC1 is 3;
the rest of the same principles can be known, and the description thereof is omitted;
thus, when cif=4, the maximum value of the PDCCH candidates for the search space of CCE with aggregation level 2 for each cell (CC 0 and CC 1) in the set of co-scheduled cell combinations indicated by cif=4 is 2 (max (CC 0, CC 1) =2);
When cif=4, the maximum value of the PDCCH candidate number of the search space of CCE with aggregation level 4 for each cell (CC 0 and CC 1) in the set of co-scheduled cell combinations indicated by cif=4 is 3 (max (CC 0, CC 1) =3);
when cif=4, the maximum value of the PDCCH candidate number of the search space of CCEs with an aggregation level of 8 for each cell (CC 0 and CC 1) in the set of co-scheduled cell combinations indicated by cif=4 is 3 (max (CC 0, CC 1) =3);
when cif=4, the maximum value of the PDCCH candidate number of the search space of CCEs with an aggregation level of 16 for each cell (CC 0 and CC 1) in the set of co-scheduled cell combinations indicated by cif=4 is 2 (max (CC 0, CC 1) =2);
when cif=5, the maximum value of the PDCCH candidate number of the search space of CCE with aggregation level 2 for each cell (CC 1 and CC 2) in the set of co-scheduled cell combinations indicated by cif=5 is 2 (max (CC 1, CC 2) =2);
the rest of the same will be clear and will not be described again.
Mode 2:
the terminal equipment determines the maximum value in the PDCCH candidate number of the search space of each cell, and then averages the maximum value to obtain an average value, so that PDCCH monitoring is carried out according to the average value.
TABLE 7
For example, as shown in connection with table 3, the carrier aggregated cells include CC0, CC1, CC2, and CC3, and in table 7, there are the following:
The number of PDCCH candidates for the search space of CCEs with an aggregation level of 2 (al=2) for CC0 is 1;
the rest of the same principles can be known, and the description thereof is omitted;
thus, when cif=4, the average of the maximum values in the PDCCH candidate numbers of search spaces for CCEs of aggregation level 2 for each cell (CC 0 and CC 1) in the set of co-scheduled cell combinations indicated by cif=4 is 1 (max (CC 0, CC 1)/2=1);
when cif=4, the average of the maximum values in the PDCCH candidate numbers of search spaces for CCEs of aggregation level 4 for each cell (CC 0 and CC 1) in the set of co-scheduled cell combinations indicated by cif=4 is 1.5 (CC 0, CC 1)/2=1.5);
the rest of the same will be clear and will not be described again.
Mode 3:
the terminal equipment determines an arbitrary value in the PDCCH candidate number of the search space of each cell, and monitors PDCCH according to the arbitrary value.
5) The number of non-overlapping CCEs of the search space of each cell in the first co-scheduled cell combination
In order to avoid the terminal device from monitoring the number of non-overlapping CCEs of the search space of each cell in the first co-scheduling cell combination, the present application may employ the following manner:
mode 1:
the terminal equipment determines the maximum value in the number of non-overlapping CCEs of the search space of each cell, and monitors PDCCH according to the maximum value.
Mode 2:
the terminal equipment determines the maximum value in the number of non-overlapping CCEs of the search space of each cell, and then averages the maximum value to obtain an average value, so that PDCCH monitoring is performed according to the average value.
Mode 3:
the terminal equipment determines an arbitrary value in the number of non-overlapping CCEs of the search space of each cell, and monitors PDCCH according to the arbitrary value.
6) Discard (drop) PDCCH candidate number
If the number of PDCCH candidates in the search space of each cell in the first co-scheduling cell combination exceeds the maximum number limit of PDCCH candidates, the present application needs to discard the exceeding number of PDCCH candidates.
7) Discarding non-overlapping CCE numbers
If the number of non-overlapping CCEs in the search space of each cell in the first co-scheduling cell combination exceeds the maximum number limit of non-overlapping CCEs, the present application needs to discard the exceeding number of non-overlapping CCEs.
8) DCI size number of search spaces of each cell in first co-scheduling cell combination
In addition, in combination with the content of "3 and DCI size number (DCI size number)", the terminal device may determine the DCI size number of the search spaces of each cell in the first co-scheduling cell combination as the type number of DCI formats used for scheduling the first co-scheduling cell combination.
Case 2:
1) Configuring search space and value of first information
In "case 2", the network device may configure a search space to one cell (for convenience of distinguishing description, the one cell is the "first cell") of a set of co-scheduled cell combinations (for convenience of distinguishing description, the set of co-scheduled cell combinations is the "first co-scheduled cell combination") indicated by the value of the first information being X (X is a certain value), and configure the value of the first information to the first cell.
2) Determining PDCCH candidate number/non-overlapping CCE number/DCI size number
In contrast, the present application only needs to take the value X of the first cell number first information to the PDCCH candidate number/non-overlapping CCE number/DCI size number of the search space of the own cell.
That is, the PDCCH candidate number/non-overlapping CCE number/DCI size number of the search space of the first cell is determined according to the value X of the first information.
For example, as shown in connection with table 3, the carrier aggregated cells include CC0, CC1, CC2, and CC3, and in fig. 3, the network device configures search space 1 and cif=6 for CC0 in the set of co-scheduled cell combinations indicated by cif=6, while other cells are not configured with search space and CIF values. In this regard, the terminal device needs to determine the PDCCH candidate number/non-overlapping CCE number/DCI size number of search space 1 of CC0 with cif=6.
3) Discarding PDCCH candidate number
If the number of PDCCH candidates in the search space of the first cell exceeds the maximum number limit of PDCCH candidates, the present application needs to discard the exceeding number of PDCCH candidates.
4) Discarding non-overlapping CCE numbers
If the number of non-overlapping CCEs in the search space of the first cell exceeds the maximum number of non-overlapping CCEs, the present application needs to discard the exceeding number of non-overlapping CCEs.
5) DCI size number of search spaces of each cell in first co-scheduling cell combination
In addition, in combination with the content of "3 and DCI size number (DCI size number)", the terminal device may determine the DCI size number of the search spaces of the first cell as the number of types of DCI formats for scheduling the first co-scheduling cell combination.
Case 3:
1) Configuring search space and value of first information
In "case 3", the network device may configure the search space of the same index to each of the partial cells in the set of co-scheduled cell combinations indicated by the value X of the first information (X is a certain value) (for convenience of distinguishing the description, the set of co-scheduled cell combinations are "first co-scheduled cell combinations"), and configure the value of the same first information to each of the partial cells. Wherein the partial cells may be a plurality of cells in a first co-scheduling cell combination.
2) Determining PDCCH candidate number/non-overlapping CCE number/DCI size number
In contrast, the number of PDCCH candidates/the number of non-overlapping CCEs/the number of DCI sizes in the search spaces of the own cell having the value X of the first information is counted for all the partial cells in the first co-scheduling cell combination.
That is, the number of PDCCH candidates/the number of non-overlapping CCEs/the number of DCI sizes of the search spaces of the partial cells in the first co-scheduling cell combination is determined according to the value X of the first information.
For example, as shown in connection with table 3, the carrier aggregated cells include CC0, CC1, CC2, and CC3, and in fig. 4, the network device configures search space 1 and cif=6 to a part of the cells in the set of co-scheduled cell combinations indicated by cif=6. Wherein CC0 is configured with search space 1 and cif=6, CC1 is configured with search space 1 and cif=6, and CC2 is configured with search space 1 and cif=6. For this, the terminal device needs to determine the PDCCH candidate number/the non-overlapping CCE number/the DCI size number of search space 1 of CC0 with cif=6, determine the PDCCH candidate number/the non-overlapping CCE number/the DCI size number of search space 1 with cif=6, and determine the PDCCH candidate number/the non-overlapping CCE number/the DCI size number of search space 1 with cif=6 of CC2, respectively.
3) The PDCCH candidate number/CCE number only needs to be calculated once
Since the partial cells in the first co-scheduling cell combination are configured with the same indexed search space and the same value of the first information, when determining the PDCCH candidate number/CCE number of the search space of the partial cells, the PDCCH candidate number/CCE number of the search space of the partial cells may be calculated only once.
In combination with the above-mentioned content of "2, whether PDCCH candidates are counted in listening" or not, the number of PDCCH candidates/the number of CCEs in the search space of a part of cells needs to be calculated only once, and it can be understood that, for the search space of the value X of the first information, PDCCH candidates having the same set of aggregation levels, the same scrambling code and the same DCI format size are regarded as one PDCCH candidate.
4) PDCCH candidate number of search space of partial cell in first co-scheduling cell combination
In order to avoid the terminal device from monitoring the PDCCH candidate number of the search space of each cell in the first co-scheduling cell combination, the present application may adopt the following manner:
mode 1:
the terminal equipment determines the maximum value in the PDCCH candidate number of the search space of the partial cell, and monitors PDCCH according to the maximum value.
Mode 2:
the terminal equipment determines the maximum value in the PDCCH candidate number of the search space of the partial cell, and then averages the maximum value to obtain an average value, so that PDCCH monitoring is carried out according to the average value.
Mode 3:
the terminal equipment determines an arbitrary value in the PDCCH candidate number of the search space of the partial cell, and monitors the PDCCH according to the arbitrary value.
5) Non-overlapping CCE number of search spaces of partial cells in first co-scheduling cell combination
In order to avoid the terminal device from monitoring the number of non-overlapping CCEs of the search space of a portion of cells in the first co-scheduling cell combination, the present application may employ the following manner:
mode 1:
the terminal equipment determines the maximum value in the number of non-overlapping CCEs of the search space of the partial cell, and monitors the PDCCH according to the maximum value.
Mode 2:
the terminal equipment determines the maximum value in the number of non-overlapping CCEs of the search space of the partial cell, and then averages the maximum value to obtain an average value, so that PDCCH monitoring is performed according to the average value.
Mode 3:
the terminal equipment determines an arbitrary value in the number of non-overlapping CCEs of the search space of the partial cell, and monitors PDCCH according to the arbitrary value.
6) Discard (drop) PDCCH candidate number
If the number of PDCCH candidates in the search space of a part of the cells exceeds the maximum number limit of PDCCH candidates, the present application needs to discard the exceeding number of PDCCH candidates.
7) Discarding non-overlapping CCE numbers
If the number of non-overlapping CCEs in the search space of a partial cell exceeds the maximum number of non-overlapping CCEs, the present application needs to discard the exceeding number of non-overlapping CCEs.
8) DCI size number of search spaces of partial cells in first co-scheduling cell combination
In addition, in combination with the content of "3 and DCI size number (DCI size number)", the terminal device may determine the DCI size number of the search spaces of the partial cells as the number of types of DCI formats for scheduling the first co-scheduling cell combination.
8. An illustration of a communication method
In connection with the above, an example of a communication method according to the embodiment of the present application will be described below by taking an interaction between a network device and a terminal device as an example. It should be noted that, the network device may be a chip, a chip module, a communication module, or the like, and the terminal device may be a chip, a chip module, a communication module, or the like. That is, the method is applied to a network device or a terminal device, which is not particularly limited.
Fig. 5 is a schematic flow chart of a communication method according to an embodiment of the present application, which specifically includes the following steps:
s510, the network equipment sends a physical downlink control channel PDCCH.
The PDCCH is determined based on at least one of the number of PDCCH candidates, the non-overlapping CCE and the DCI size number, and the at least one of the number of PDCCH candidates, the non-overlapping CCE and the DCI size number is determined based on the value of the first information;
wherein, a value of the first information is used for indicating a group of co-scheduling cell combinations, and the co-scheduling cell combinations are at least one cell which is scheduled simultaneously in a carrier aggregation cell.
In some possible implementations, the value of each first information has an association with each group of co-scheduling cell groups.
In some possible implementations, the association between the value of each first information and each group of co-scheduling cell groups is configured by configuration information.
Correspondingly, the terminal equipment monitors the PDCCH.
In some possible implementations, PDCCH listening may be performed by determining at least one of a PDCCH candidate number, a non-overlapping CCE number, a DCI size number of the search spaces of the co-scheduling cell combination according to the value of the first information.
The "configuration information", "first information", "co-scheduling cell combination", "value of the first information", "PDCCH candidate number", "non-overlapping CCE number" and "DCI size number" etc. are described in detail in the foregoing, and are not described in detail.
It can be seen that the present application introduces the first information, and indicates a set of co-scheduling cell combinations, which are at least one cell that is simultaneously scheduled in a carrier aggregated cell, by a value of the first information. And then, determining at least one of the number of PDCCH candidates, the number of non-overlapping CCEs and the number of DCI sizes of the values of each piece of first information so as to monitor the PDCCH.
In this way, when the PDCCH is monitored subsequently to obtain a value of a certain first information, a certain group of co-scheduling cell combinations are indicated from the cells in the carrier aggregation through the value of the certain first information, so that the cells in the certain group of co-scheduling cell combinations are scheduled simultaneously, multi-cell scheduling is further realized, and the monitoring complexity of the PDCCH is reduced through multi-cell scheduling to save power consumption.
In some possible implementations, cells configured with search space and/or values of the first information are present in the co-scheduled cell combination.
It should be noted that, in combination with the content in the above "6, cells with search space configured in each group of co-scheduling cell combinations" and "7, and cells with value configured with first information in each group of co-scheduling cell combinations", in order to ensure PDCCH monitoring, the network device may configure search space and/or value of first information to cells aggregated by carriers. In this regard, cells configured with search space and/or values of the first information are present in each set of co-scheduled cell combinations.
In this way, the terminal device may only need to perform blind detection on the cell configured with the search space and/or the value of the first information to determine whether the network device has a PDCCH to send to itself.
In some possible implementations, each cell in the first co-scheduled cell combination is configured with the same indexed search space, and each cell is configured with the same value of the first information;
the first co-scheduling cell combination is a set of co-scheduling cell combinations.
It should be noted that, in combination with the content in the above "case 1", the network device may configure the search space of the same index to each cell in the set of co-scheduling cell groups (i.e., the first co-scheduling cell group) indicated by the value X of the first information (X is a certain value), and configure the value of the same first information to each cell. In this way, the present application can calculate the PDCCH candidate number/non-overlapping CCE number/DCI size number for each cell.
In some possible implementations, determining at least one of the PDCCH candidate number, the non-overlapping CCE number, and the DCI size number of the search spaces of each cell according to the value of the first information configured by each cell may be determined according to the value of the first information configured by each cell.
It should be noted that, in combination with the content in the above "case 1", the present application may implement the number of PDCCH candidates/the number of non-overlapping CCEs/the number of DCI sizes in the search space of the own cell with the value X of the first information for each cell in the first co-scheduling cell combination.
In some possible implementations, the number of PDCCH candidates for the search space of each cell is the maximum of the number of PDCCH candidates for the search space of each cell; or, for the maximum value in the PDCCH candidate number of the search space of each cell, averaging the maximum values;
the number of non-overlapping CCEs of the search space of each cell is the maximum value of the number of non-overlapping CCEs of the search space of each cell; alternatively, the maximum value of the number of non-overlapping CCEs at each aggregation level is averaged for each cell.
It should be noted that, in combination with the content in the above "case 1", the present application may perform PDCCH monitoring according to the maximum value or the average value of the number of PDCCH candidates in the search space of each cell, so as to avoid monitoring the number of PDCCH candidates in the search space of each cell, and improve the monitoring efficiency.
In the same way, the PDCCH monitoring can be performed according to the maximum value or the average value of the number of the non-overlapping CCEs of the search space of each cell, so that the number of the non-overlapping CCEs of the search space of each cell is prevented from being monitored, and the monitoring efficiency is improved.
In some possible implementations, the number of DCI sizes for the search spaces of each cell is the number of types of DCI formats used to schedule the first co-scheduling cell combination.
It can be seen that the present application may implement determining the DCI size number of the search spaces of each cell in the first co-scheduling cell combination by scheduling the number of kinds of DCI formats of the first co-scheduling cell combination.
In some possible implementations, only one first cell in the first co-scheduling cell combination is configured with a search space, and the first cell is configured with a value of the first information;
the first co-scheduling cell combination is a set of co-scheduling cell combinations.
It should be noted that, in combination with the content in the above "case 2", the network device may configure the search space to a cell (i.e., the first cell) in the group of co-scheduling cell groups (i.e., the first co-scheduling cell group) indicated by the value X (X is a certain value) of the first information, and configure the value of the first information to the first cell. In this way, the method and the device can only calculate the PDCCH candidate number/the non-overlapping CCE number/the DCI size number for one cell, thereby reducing the calculation complexity.
In some possible implementations, at least one of the number of PDCCH candidates, the number of non-overlapping CCEs, and the number of DCI sizes for the search space of the first cell may be determined according to a value of the first information configured by the first cell.
In addition, in combination with the content in the above "case 2", the present application may implement the number of PDCCH candidates/the number of non-overlapping CCEs/the number of DCI sizes of the search spaces of the own cell that only needs to take the value X of the first cell number first information.
In some possible implementations, the DCI size number of the search spaces of the first cell is the number of types of DCI formats used to schedule the first co-scheduling cell combination.
It can be seen that the present application may implement determining the DCI size number of the search spaces of the first cell by scheduling the number of kinds of DCI formats of the first co-scheduling cell combination.
In some possible implementations, some cells in the first co-scheduling cell combination are all configured with search spaces of the same index, and some cells are all configured with values of the same first information; the first co-scheduling cell combination is a group of co-scheduling cell combinations;
the partial cells are a plurality of cells in a first co-scheduled cell combination.
It should be noted that, in combination with the content in the above "case 3", the network device may configure the search space of the same index to each of the partial cells in the group of co-scheduling cell groups (i.e., the first co-scheduling cell group) indicated by the value X of the first information (X is a certain value), and configure the value of the same first information to each of the partial cells. In this way, the method and the device can only calculate the PDCCH candidate number/the non-overlapping CCE number/the DCI size number aiming at partial cells, thereby reducing the calculation complexity.
In some possible implementations, at least one of the PDCCH candidate number, the non-overlapping CCE number, and the DCI size number of the search spaces of the partial cells may be determined according to a value of the first information configured by the partial cells.
It should be noted that, in combination with the content in the above "case 3", the present application may implement the number of PDCCH candidates/the number of non-overlapping CCEs/the number of DCI sizes in the search space of the own cell with the value X of the first information for all the partial cells in the first co-scheduling cell combination.
In some possible implementations, the number of PDCCH candidates for the search space of the partial cell is the maximum of the number of PDCCH candidates for the search space of the partial cell; or, the maximum value of the PDCCH candidate numbers in the search space of the partial cells is averaged.
The number of non-overlapping CCEs of the search space of the partial cell is the maximum value in the number of non-overlapping CCEs of the search space of the partial cell; alternatively, the maximum value of the number of non-overlapping CCEs in the search space of the partial cell is averaged.
It should be noted that, in combination with the content in the above "case 3", the present application may perform PDCCH monitoring according to the maximum value or the average value of the number of PDCCH candidates in the search space of a part of cells, so as to avoid monitoring the number of PDCCH candidates in the search space of each cell, and improve the monitoring efficiency.
In the same way, the PDCCH monitoring can be carried out according to the maximum value or the average value in the number of the non-overlapping CCEs of the search space of the partial cells, so that the number of the non-overlapping CCEs of the search space of each cell is prevented from being monitored, and the monitoring efficiency is improved.
In some possible implementations, the DCI size number of the search spaces of the partial cells is the number of types of DCI formats used to schedule the first co-scheduling cell combination.
It can be seen that the present application may implement determining the DCI size number of the search spaces of the partial cells in the first co-scheduling cell combination by scheduling the number of kinds of DCI formats of the first co-scheduling cell combination.
In some possible implementations, the first information includes one or both fields in the DCI.
It should be noted that, in combination with the content in "3, configuration information, first information, and co-scheduling cell combination" described above, the present application may implement DCI to carry the first information, and implement indicating the co-scheduling cell combination through one field or two fields in the DCI.
In some possible implementations, if the first information is one field in the DCI, the value of the one field may be used to indicate a set of co-scheduling cell combinations, and the value of the one field corresponds to a CCE index set of PDCCH candidates.
In some possible implementations, if the first information is two fields in the DCI, the value of the first field in the two fields may be used to indicate a plurality of groups of co-scheduling cell combinations, and the value of the first field corresponds to a CCE index group of a PDCCH candidate; the value of the second of the two fields is used to indicate a set of co-scheduled cell combinations from the set of co-scheduled cell combinations indicated by the first field.
It should be noted that, in combination with the content of "3, configuration information, first information, and co-scheduling cell combination" described above, the present application corresponds the value of one first field to the value of a plurality of second fields, and the value of one second field is used to indicate a set of co-scheduling cell combinations. Thus, the value of one first field may be used to indicate a plurality of groups of co-scheduled cell combinations.
6. An illustration of a communication device
The foregoing description of the embodiments of the present application has been presented primarily from a method-side perspective. It will be appreciated that the terminal device or network device, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as outside the scope of this application.
The embodiment of the application can divide the functional units of the terminal equipment or the network equipment according to the method example. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, but only one logic function is divided, and another division manner may be implemented in actual implementation.
In case of using an integrated unit, fig. 6 is a functional unit composition block diagram of a listening device according to an embodiment of the present application. The communication apparatus 600 includes: a listening unit 601.
In some possible implementations, the listening unit 601 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.
In some possible implementations, the communication device 600 may also include a storage unit for storing computer program code or instructions executed by the communication device 600. The memory unit may be a memory.
In some possible implementations, the communication device 600 may be a chip or a chip module.
In some possible implementations, the listening unit 601 may be integrated in other units.
For example, the listening unit 601 may be integrated in the communication unit.
For another example, the snoop unit 601 may be integrated in the processing unit.
The communication unit may be a communication interface, a transceiver circuit, or the like.
The processing unit may be a processor or controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.
In some possible implementations, the listening unit 601 is configured to perform any step performed by the terminal device/chip module, etc. in the above-described method embodiments, such as sending or receiving data, etc. The following is a detailed description.
In particular implementation, the listening unit 601 is configured to perform any step of the method embodiments described above, and when performing an action such as sending, optionally call other units to complete a corresponding operation. The following is a detailed description.
A monitoring unit 601, configured to monitor a PDCCH, where the PDCCH is determined based on at least one of a PDCCH candidate number, a non-overlapping CCE, and a DCI size number, and the at least one of the PDCCH candidate number, the non-overlapping CCE, and the DCI size number is determined based on a value of the first information;
wherein, a value of the first information is used for indicating a group of co-scheduling cell combinations, and the co-scheduling cell combinations are at least one cell which is scheduled simultaneously in a carrier aggregation cell.
It can be seen that the present application introduces the first information and the association between the value of each first information and each group of co-scheduling cell groups, and indicates a group of co-scheduling cell combinations by the value of one first information, where a group of co-scheduling cell combinations is at least one cell that is simultaneously scheduled in a carrier aggregated cell. And then, determining at least one of the number of PDCCH candidates, the number of non-overlapping CCEs and the number of DCI sizes of the values of each piece of first information so as to monitor the PDCCH. In this way, when the PDCCH is monitored subsequently to obtain the value of certain first information, a certain group of co-scheduling cell combinations are indicated from the cells aggregated by the carrier through the value of certain first information, so that the cells in the certain group of co-scheduling cell combinations are simultaneously scheduled, and multi-cell scheduling is further realized.
In some possible implementations, cells configured with search space and/or values of the first information are present in the co-scheduled cell combination.
In some possible implementations, each cell in the first co-scheduled cell combination is configured with the same indexed search space, and each cell is configured with the same value of the first information;
the first co-scheduling cell combination is a set of co-scheduling cell combinations.
In some possible implementations, at least one of the number of PDCCH candidates, the number of non-overlapping CCEs, and the number of DCI sizes for the search spaces of each cell may be determined according to a value of the first information configured by each cell.
In some possible implementations, the number of PDCCH candidates for the search space of each cell is the maximum of the number of PDCCH candidates for the search space of each cell; or, for the maximum value in the PDCCH candidate number of the search space of each cell, averaging the maximum values;
the number of non-overlapping CCEs of the search space of each cell is the maximum value of the number of non-overlapping CCEs of the search space of each cell; alternatively, the maximum value of the number of non-overlapping CCEs at each aggregation level is averaged for each cell.
In some possible implementations, the number of DCI sizes for the search spaces of each cell is the number of types of DCI formats used to schedule the first co-scheduling cell combination.
In some possible implementations, only one first cell in the first co-scheduling cell combination is configured with a search space, and the first cell is configured with a value of the first information;
the first co-scheduling cell combination is a set of co-scheduling cell combinations.
In some possible implementations, determining at least one of the PDCCH candidate number, the non-overlapping CCE number, and the DCI size number of the search space of the first cell according to the value of the first information configured by the first cell may be determined according to the value of the first information configured by the first cell.
In some possible implementations, the DCI size number of the search spaces of the first cell is the number of types of DCI formats used to schedule the first co-scheduling cell combination.
In some possible implementations, some cells in the first co-scheduling cell combination are all configured with search spaces of the same index, and some cells are all configured with values of the same first information; the first co-scheduling cell combination is a group of co-scheduling cell combinations;
The partial cells are a plurality of cells in a first co-scheduled cell combination.
In some possible implementations, at least one of the PDCCH candidate number, the non-overlapping CCE number, and the DCI size number of the search spaces of the partial cells may be determined according to a value of the first information configured by the partial cells.
In some possible implementations, the number of PDCCH candidates for the search space of the partial cell is the maximum of the number of PDCCH candidates for the search space of the partial cell; or, as the maximum value in the PDCCH candidate number of the search space of the partial cell, averaging the maximum values;
the number of non-overlapping CCEs of the search space of the partial cell is the maximum value in the number of non-overlapping CCEs of the search space of the partial cell; alternatively, the maximum value of the number of non-overlapping CCEs in the search space of the partial cell is averaged.
In some possible implementations, the DCI size number of the search spaces of the partial cells is the number of types of DCI formats used to schedule the first co-scheduling cell combination.
In some possible implementations, the first information includes one or both fields in the DCI.
In some possible implementations, if the first information is one field in the DCI, the value of the one field may be used to indicate a set of co-scheduling cell combinations, and the value of the one field corresponds to a CCE index set of PDCCH candidates.
In some possible implementations, if the first information is two fields in the DCI, the value of the first field in the two fields may be used to indicate a plurality of groups of co-scheduling cell combinations, and the value of the first field corresponds to a CCE index group of a PDCCH candidate; the value of the second of the two fields is used to indicate a set of co-scheduled cell combinations from the set of co-scheduled cell combinations indicated by the first field.
7. Yet another exemplary illustration of a communication device
In the case of using integrated units, fig. 7 is a functional unit block diagram of still another communication apparatus of the embodiment of the present application. The communication apparatus 700 includes: a transmitting unit 701.
In some possible implementations, the transmitting unit 701 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.
In some possible implementations, the communication device 700 may also include a storage unit for storing computer program code or instructions executed by the communication device 700. The memory unit may be a memory.
In some possible implementations, the communication device 700 may be a chip or a chip module.
In some possible implementations, the sending unit 701 may be integrated in other units.
For example, the transmitting unit 701 may be integrated in a communication unit. The communication unit may be a communication interface, transceiver circuit, etc.
For another example, the transmitting unit 701 may be integrated in a processing unit. The processing unit may be a processor or controller, and may be, for example, a baseband processor, a baseband chip, CPU, DSP, ASIC, FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.
In some possible implementations, the sending unit 701 is configured to perform any step, such as sending or receiving, of data transmission performed by the network device/chip module, etc., in the above-described method embodiments. The following is a detailed description.
In particular implementation, the sending unit 701 is configured to perform any step in the method embodiments described above, and when performing an action such as receiving, other units may be selectively called to complete the corresponding operation. The following is a detailed description.
A transmitting unit 701, configured to transmit a PDCCH, where the PDCCH is determined based on at least one of a PDCCH candidate number, a non-overlapping CCE, and a DCI size number, and the at least one of the PDCCH candidate number, the non-overlapping CCE, and the DCI size number is determined based on a value of the first information;
wherein, a value of the first information is used for indicating a group of co-scheduling cell combinations, and the co-scheduling cell combinations are at least one cell which is scheduled simultaneously in a carrier aggregation cell.
As can be seen, the present application introduces the first information and the association between the value of each first information and each group of co-scheduling cell groups, and indicates a group of co-scheduling cell combinations by the value of one first information, where a group of co-scheduling cell combinations is at least one cell that is simultaneously scheduled in a carrier aggregated cell, and the frequency domain starting position of the first PUSCH resource and the frequency domain starting position of the second PUSCH resource are located in the same or different available frequency domain resources. In this way, when the PDCCH is monitored subsequently to obtain the value of certain first information, a certain group of co-scheduling cell combinations are indicated from the cells aggregated by the carrier through the value of certain first information, so that the cells in the certain group of co-scheduling cell combinations are simultaneously scheduled, and multi-cell scheduling is further realized.
In some possible implementations, cells configured with search space and/or values of the first information are present in the co-scheduled cell combination.
In some possible implementations, each cell in the first co-scheduled cell combination is configured with the same indexed search space, and each cell is configured with the same value of the first information;
the first co-scheduling cell combination is a set of co-scheduling cell combinations.
In some possible implementations, only one first cell in the first co-scheduling cell combination is configured with a search space, and the first cell is configured with a value of the first information;
the first co-scheduling cell combination is a set of co-scheduling cell combinations.
In some possible implementations, some cells in the first co-scheduling cell combination are all configured with search spaces of the same index, and some cells are all configured with values of the same first information; the first co-scheduling cell combination is a group of co-scheduling cell combinations;
the partial cells are a plurality of cells in a first co-scheduled cell combination.
In some possible implementations, the first information includes one or both fields in the DCI.
In some possible implementations, if the first information is one field in the DCI, the value of the one field may be used to indicate a set of co-scheduling cell combinations, and the value of the one field corresponds to a CCE index set of PDCCH candidates.
In some possible implementations, if the first information is two fields in the DCI, the value of the first field in the two fields may be used to indicate a plurality of groups of co-scheduling cell combinations, and the value of the first field corresponds to a CCE index group of a PDCCH candidate; the value of the second of the two fields is used to indicate a set of co-scheduled cell combinations from the set of co-scheduled cell combinations indicated by the first field.
8. Example illustration of terminal equipment
Referring to fig. 8, fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Wherein the terminal device 800 comprises a processor 810, a memory 820 and a communication bus connecting the processor 810 and the memory 820.
In some possible implementations, memory 820 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or portable read-only memory (compact disc read-only memory, CD-ROM), memory 820 for storing program code and transmitted data for execution by terminal device 800.
In some possible implementations, the terminal device 800 also includes a communication interface for receiving and transmitting data.
In some possible implementations, the processor 810 may be one or more Central Processing Units (CPUs), which in the case where the processor 810 is one Central Processing Unit (CPU), may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU).
In some possible implementations, the processor 810 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.
In particular implementation, the processor 810 in the terminal device 800 is configured to execute the computer program or instructions 821 stored in the memory 820 to perform the following operations:
monitoring PDCCH, wherein the PDCCH is determined based on at least one of the number of PDCCH candidates, non-overlapping CCEs and DCI size numbers, and the at least one of the number of PDCCH candidates, the non-overlapping CCEs and the DCI size numbers is determined based on the value of the first information;
wherein, a value of the first information is used for indicating a group of co-scheduling cell combinations, and the co-scheduling cell combinations are at least one cell which is scheduled simultaneously in a carrier aggregation cell.
It can be seen that the present application introduces the first information and the association between the value of each first information and each group of co-scheduling cell groups, and indicates a group of co-scheduling cell combinations by the value of one first information, where a group of co-scheduling cell combinations is at least one cell that is simultaneously scheduled in a carrier aggregated cell. And then, determining at least one of the number of PDCCH candidates, the number of non-overlapping CCEs and the number of DCI sizes of the values of each piece of first information so as to monitor the PDCCH. In this way, when the PDCCH is monitored subsequently to obtain the value of certain first information, a certain group of co-scheduling cell combinations are indicated from the cells aggregated by the carrier through the value of certain first information, so that the cells in the certain group of co-scheduling cell combinations are simultaneously scheduled, and multi-cell scheduling is further realized.
9. An illustration of a network device
Referring to fig. 9, fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present application. The network device 900 includes a processor 910, a memory 920, and a communication bus for connecting the processor 910 and the memory 920.
In some possible implementations, memory 920 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, which memory 920 is used to store related instructions and data.
In some possible implementations, the network device 900 also includes a communication interface for receiving and transmitting data.
In some possible implementations, the processor 910 may be one or more Central Processing Units (CPUs), and in the case where the processor 910 is one Central Processing Unit (CPU), the Central Processing Unit (CPU) may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU).
In some possible implementations, the processor 910 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.
In some possible implementations, the processor 910 in the network device 900 is configured to execute the computer program or instructions 921 stored in the memory 920 to perform the following operations:
Transmitting PDCCH, wherein the PDCCH is determined based on at least one of the number of PDCCH candidates, non-overlapping CCEs and DCI size numbers, and the at least one of the number of PDCCH candidates, non-overlapping CCEs and DCI size numbers is determined based on the value of the first information;
wherein, a value of the first information is used for indicating a group of co-scheduling cell combinations, and the co-scheduling cell combinations are at least one cell which is scheduled simultaneously in a carrier aggregation cell.
It can be seen that the present application introduces the first information and the association between the value of each first information and each group of co-scheduling cell groups, and indicates a group of co-scheduling cell combinations by the value of one first information, where a group of co-scheduling cell combinations is at least one cell that is simultaneously scheduled in a carrier aggregated cell. And then, determining at least one of the number of PDCCH candidates, the number of non-overlapping CCEs and the number of DCI sizes of the values of each piece of first information so as to monitor the PDCCH. In this way, when the PDCCH is monitored subsequently to obtain a value of a certain first information, a certain group of co-scheduling cell combinations are indicated from the cells in the carrier aggregation through the value of the certain first information, so that the cells in the certain group of co-scheduling cell combinations are scheduled simultaneously, and multi-cell scheduling is further realized, so that the monitoring complexity of the PDCCH is reduced through multi-cell scheduling to save power consumption
It should be noted that, the specific implementation of each operation may be described in the foregoing method embodiment, and the network device 900 may be used to execute the foregoing method embodiment of the present application, which is not described herein again.
10. Other related exemplary illustrations
In some possible implementations, the above-described method embodiments may be applied to or among terminal devices. That is, the execution body of the above-described method embodiment may be a terminal device, and may be a chip, a chip module, a module, or the like, which is not particularly limited.
In some possible implementations, the above-described method embodiments may be applied to or among network devices. That is, the execution body of the above-mentioned method embodiment may be a network device, and may be a chip, a chip module or a module, which is not limited in particular.
The embodiment of the application also provides a chip, which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.
The embodiment of the application also provides a chip module, which comprises a transceiver component and a chip, wherein the chip comprises a processor, a memory and a computer program or instructions stored on the memory, and the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.
The present application also provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement the steps described in the method embodiments above.
Embodiments of the present application also provide a computer program product comprising a computer program or instructions which, when executed, implement the steps described in the method embodiments above.
The embodiment of the application also provides a communication system which comprises the terminal equipment and the network equipment.
For the above embodiments, for simplicity of description, the same is denoted as a series of combinations of actions. It will be appreciated by those skilled in the art that the present application is not limited by the illustrated ordering of acts, as some steps may be performed in other order or concurrently in embodiments of the present application. In addition, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts, steps, modules, units, etc. that are referred to are not necessarily required in the embodiments of the application.
In the foregoing embodiments, the descriptions of the embodiments of the present application are focused on each embodiment, and for a portion of one embodiment that is not described in detail, reference may be made to the related descriptions of other embodiments.
The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, electrically Erasable EPROM (EEPROM), registers, hard disk, a removable disk, a compact disk read-only (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in a terminal device or a management device. The processor and the storage medium may reside as discrete components in a terminal device or management device.
Those of skill in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The respective apparatuses and the respective modules/units included in the products described in the above embodiments may be software modules/units, may be hardware modules/units, or may be partly software modules/units, and partly hardware modules/units. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal device, each module/unit included in the device may be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal device, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated within the terminal device, and the remaining (if any) part of the modules/units may be implemented in hardware such as a circuit.
The foregoing embodiments have been provided for the purpose of illustrating the embodiments of the present application in further detail, and it should be understood that the foregoing embodiments are merely illustrative of the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application are included in the scope of the embodiments of the present application.

Claims (28)

1. A method of communication, comprising:
monitoring a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is determined based on at least one of the number of PDCCH candidates, a non-overlapping Channel Control Element (CCE) and the size of Downlink Control Information (DCI), and at least one of the number of PDCCH candidates, the non-overlapping CCE and the size of DCI is determined based on the value of first information;
wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
2. The method according to claim 1, characterized in that cells configured with search space and/or values of the first information are present in the co-scheduled cell combination.
3. The method of claim 2, wherein each cell in the first co-scheduled cell combination is configured with a search space of the same index, and wherein each cell is configured with the same value of the first information;
the first co-scheduling cell combination is a set of the co-scheduling cell combinations.
4. The method of claim 3, wherein the step of,
and determining at least one of the number of PDCCH candidates, the number of non-overlapping CCEs and the number of DCI sizes of the search space of each cell according to the value of the first information configured by each cell.
5. The method of claim 4, wherein the number of PDCCH candidates for the search space for each cell is the maximum of the number of PDCCH candidates for the search space for each cell; or, for the maximum value in the number of PDCCH candidates in the search space of each cell, obtaining the average of the maximum values;
the number of non-overlapping CCEs of the search space of each cell is the maximum value of the number of non-overlapping CCEs of the search space of each cell; or, the maximum value of the number of non-overlapping CCEs of each cell under each aggregation level is obtained, and the average of the maximum values is obtained.
6. The method of claim 4, wherein the number of DCI sizes of the search spaces of each cell is a number of types of DCI formats used to schedule the first co-scheduling cell combination.
7. The method of claim 2, wherein only a first cell in a first co-scheduled cell combination is configured with a search space and said first cell is configured with a value of said first information;
the first co-scheduling cell combination is a set of the co-scheduling cell combinations.
8. The method of claim 7, wherein the step of determining the position of the probe is performed,
at least one of the number of PDCCH candidates, the number of non-overlapping CCEs, and the number of DCI sizes in the search space of the first cell is determined according to the value of the first information configured in the first cell.
9. The method of claim 8, wherein the number of DCI sizes of the search spaces of the first cell is a number of types of DCI formats used to schedule the first co-scheduling cell combination.
10. The method of claim 2, wherein part of cells in a first co-scheduling cell combination are each configured with a search space of the same index, and the part of cells are each configured with the same value of the first information; the first co-scheduling cell combination is a group of the co-scheduling cell combinations;
The partial cells are a plurality of cells in the first co-scheduled cell combination.
11. The method of claim 10, wherein the step of determining the position of the first electrode is performed,
at least one of the number of PDCCH candidates, the number of non-overlapping CCEs, and the number of DCI sizes of the search spaces of the partial cell is determined according to the value of the first information configured by the partial cell.
12. The method of claim 11, wherein the number of PDCCH candidates for the search space of the partial cell is a maximum of the number of PDCCH candidates for the search space of the partial cell; or, as the maximum value in the PDCCH candidate number of the search space of the partial cell, obtaining the average of the maximum value;
the number of non-overlapping CCEs of the search space of the partial cell is the maximum value of the number of non-overlapping CCEs of the search space of the partial cell; or, as the maximum value in the number of non-overlapping CCEs in the search space of the partial cell, averaging the maximum values.
13. The method of claim 11, wherein the number of DCI sizes of the search spaces of the partial cells is a number of types of DCI formats used to schedule the first co-scheduling cell combination.
14. The method of any of claims 1-13, wherein the first information comprises one or two fields in DCI.
15. The method of claim 14, wherein if the first information is one field in DCI, the value of the one field is used to indicate a set of the co-scheduling cell combinations, and the value of the one field corresponds to a CCE index set of PDCCH candidates; or,
if the first information is two fields in the DCI, the value of a first field in the two fields is used for indicating a plurality of groups of co-scheduling cell combinations, and the value of the first field corresponds to a CCE index group of a PDCCH candidate; the value of the second field of the two fields is used for indicating one group of the co-scheduling cell combinations from the plurality of groups of the co-scheduling cell combinations indicated by the first field.
16. A method of communication, comprising:
transmitting a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is determined based on at least one of the number of PDCCH candidates, a non-overlapping Channel Control Element (CCE) and the size of Downlink Control Information (DCI), and at least one of the number of PDCCH candidates, the non-overlapping CCE and the size of DCI is determined based on the value of first information;
Wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
17. The method according to claim 16, wherein cells configured with search space and/or values of the first information are present in the co-scheduled cell combination.
18. The method of claim 17, wherein each cell in the first co-scheduled cell combination is configured with a search space of the same index and each cell is configured with the same value of the first information;
the first co-scheduling cell combination is a set of the co-scheduling cell combinations.
19. The method of claim 17, wherein only a first cell in the first co-scheduled cell combination is configured with a search space and the first cell is configured with a value of the first information;
the first co-scheduling cell combination is a set of the co-scheduling cell combinations.
20. The method of claim 17, wherein part of the cells in the first co-scheduling cell combination are each configured with the same indexed search space, and the part of the cells are each configured with the same value of the first information; the first co-scheduling cell combination is a group of the co-scheduling cell combinations;
The partial cells are a plurality of cells in the first co-scheduled cell combination.
21. The method according to any of claims 16-20, wherein the first information is one or two fields in DCI.
22. The method of claim 21, wherein if the first information is one field in DCI, the value of the one field is used to indicate a set of the co-scheduling cell combinations, and the value of the one field corresponds to a CCE index set of PDCCH candidates; or,
if the first information is two fields in the DCI, the value of a first field in the two fields is used for indicating a plurality of groups of co-scheduling cell combinations, and the value of the first field corresponds to a CCE index group of a PDCCH candidate; the value of the second field of the two fields is used for indicating one group of the co-scheduling cell combinations from the plurality of groups of the co-scheduling cell combinations indicated by the first field.
23. A communication device, comprising:
a monitoring unit, configured to monitor a physical downlink control channel PDCCH, where the PDCCH is determined based on at least one of a PDCCH candidate number, a non-overlapping channel control element CCE, and a downlink control information DCI size number, and at least one of the PDCCH candidate number, the non-overlapping CCE, and the DCI size number is determined based on a value of first information;
Wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
24. A communication device, comprising:
a sending unit, configured to send a physical downlink control channel PDCCH, where the PDCCH is determined based on at least one of a PDCCH candidate number, a non-overlapping channel control element CCE, and a downlink control information DCI size number, and at least one of the PDCCH candidate number, the non-overlapping CCE, and the DCI size number is determined based on a value of first information;
wherein the value of one of the first information is used to indicate a set of co-scheduled cell combinations, which are at least one cell that is simultaneously scheduled within a carrier aggregated cell.
25. A terminal device comprising a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to carry out the steps of the method according to any one of claims 1-15.
26. A network device comprising a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps of the method of any one of claims 16-22.
27. A chip comprising a processor, wherein the processor performs the steps of the method of any one of claims 1-15 or 16-22.
28. A computer readable storage medium, characterized in that it stores a computer program or instructions which, when executed, implement the steps of the method of any one of claims 1-15 or 16-22.
CN202210779762.0A 2022-07-04 2022-07-04 Communication method and device, terminal equipment, network equipment and chip Pending CN117411597A (en)

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