CN115190615A - Resource allocation method, device, network equipment, terminal, system and storage medium - Google Patents

Abstract

The application provides a resource allocation method, a device, a network device, a terminal, a system and a storage medium, wherein the method comprises the following steps: acquiring terminal equipment capability information, wherein the terminal equipment capability information is used for indicating the PDCCH monitoring capability; and configuring the number of blind tests and/or the number of non-overlapping CCEs (control channel elements) for monitoring the PDCCH for a first resource according to the capability information of the terminal equipment, wherein the first resource comprises N time units in a time domain, and N is a positive integer greater than 2. By the scheme, the problem that the processing capacity of the UE can be burdened under the condition that BD/CCE allocation is not limited can be solved.

Description

Resource allocation method, device, network equipment, terminal, system and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a network device, a terminal, a system, and a storage medium for resource allocation.

Background

Generally, monitoring of a Physical Downlink Control Channel (PDCCH) of a terminal device is performed with granularity of one timeslot in a time domain. Specifically, the terminal device monitors the PDCCH according to a Blind Decoding (BD)/Control Channel Elements (CCE) in one timeslot. For a scenario in which a PDCCH is monitored with a multi-slot span as granularity, where the multi-slot span includes multiple slots, if the allocation of a BD/CCE is not limited, the BD/CCE is easily allocated in different adjacent multi-slot spans, thereby causing a burden on the processing capability of a terminal device.

Disclosure of Invention

Embodiments of the present application provide a resource allocation method, apparatus, network device, terminal, system, and storage medium, which can solve the problem of allocation of BDs and CCEs in the prior art.

In a first aspect, an embodiment of the present application provides a resource allocation method, where the method includes: acquiring terminal equipment capability information, wherein the terminal equipment capability information is used for indicating the PDCCH monitoring capability; and configuring the number of blind tests and/or the number of non-overlapping CCEs (control channel elements) for monitoring the PDCCH for a first resource according to the capability information of the terminal equipment, wherein the first resource comprises N time units in a time domain, and N is a positive integer greater than 2.

Further, the terminal device capability information is used to indicate a minimum number of blind detections supported by the terminal device in a time unit, and/or a minimum number of non-overlapping CCEs supported by the terminal device in a time unit.

Further, the N time units include a first time unit, the first time unit is located at a start position or an end position of the N time units, the number of blind detections of the PDCCH in the first time unit is greater than the minimum number of blind detections, and the number of non-overlapping CCEs in the first time unit is greater than the minimum number of non-overlapping CCEs. In an embodiment, the time unit may be a time slot, and then a head-to-tail time slot resource allocation restriction in a multi-time slot span (including N time slots) is configured by obtaining a corresponding minimum blind detection number and a minimum number of non-overlapping CCEs in the time slot, and the resource allocation restriction of a non-head-to-tail time slot in the multi-time slot span is not limited, may not be limited, or may be limited according to a preset manner. In other embodiments, the one time unit may also be a symbol, a frame, a subframe, and the like, which is not limited herein.

Further, the terminal device capability information is used to indicate the maximum number of blind detections supported by the terminal device in a time unit and/or the maximum number of non-overlapping CCEs supported by the terminal device in a time unit.

Further, the N time units include a second time unit, the second time unit is not located at the start position or the end position of the N time units, the number of blind detections of PDCCHs in the second time unit is smaller than the maximum number of blind detections, and the number of non-overlapping CCEs in the second time unit is smaller than the maximum number of non-overlapping CCEs. In this embodiment, the time unit may be a time slot, and the resource allocation restriction of the non-head-to-tail time slot in the multi-slot span (including N time slots) is configured by acquiring the maximum blind detection number and the maximum number of non-overlapping CCEs corresponding to the terminal device in the time slot, and the resource allocation restriction of the head-to-tail time slot in the multi-slot span is not limited, may not be limited, or may be limited according to a preset manner. In another embodiment, corresponding resource allocation restrictions may be set on a target time slot within a multi-slot span according to the obtained minimum blind detection number and minimum non-overlapping CCE number corresponding to the terminal device in one time slot and the obtained maximum blind detection number and maximum non-overlapping CCE number corresponding to the terminal device in one time slot, and by performing resource allocation restrictions on a head-to-tail time slot and a non-head-to-tail time slot within the multi-slot span, the data processing pressure of the terminal device in the PDCCH monitoring stage may be effectively reduced. In other embodiments, the one time unit may also be a symbol, a frame, a subframe, and the like, which is not limited herein.

Further, the PDCCH monitoring capability is used to indicate M, where M is the number of time unit blocks into which the N time units are divided, and M is a positive integer.

Further, each of the M time unit blocks into which the N time units are divided includes K time units, where K = N/M, and K, M is a positive integer. In one embodiment, K is set to 2 ≦ K, i.e., each time cell block includes at least 2 time cells.

Further, the number of blind detections of PDCCHs in each time unit block of M time unit blocks into which the N time units are divided is a first value, and the number of non-overlapping CCEs in each time unit block is a second value, where the first value is obtained according to the maximum number of blind detections of PDDCHs supported by the terminal device in the N time units and M, and the second value is obtained according to the maximum number of non-overlapping CCEs supported by the terminal device in the N time units and M.

In a second aspect, an embodiment of the present application further provides a resource allocation apparatus, where the apparatus includes a processor and a memory, where the memory is configured to store at least one instruction, and the instruction is loaded by the processor and executed to implement the resource allocation method provided in the first aspect.

In one embodiment, the resource allocation apparatus provided in the second aspect may be a chip.

In a third aspect, another embodiment of the present application further provides a chip, where the chip is connected to a memory, or the chip is integrated with a memory (for example, the resource allocation apparatus provided in the second aspect), and when a program or an instruction stored in the memory is executed, the resource allocation method provided in the first aspect is implemented.

In a fourth aspect, an embodiment of the present application further provides a network device, where the network device may include a device body and the resource allocation apparatus provided in the second aspect. In an embodiment, the chip provided in the second aspect may be built in the network device, and the chip executes a corresponding instruction to implement the resource allocation method provided in the first aspect.

In one embodiment, the network device provided in the third aspect may be a base station.

In a fifth aspect, an embodiment of the present application further provides a terminal device used in cooperation with the network device provided in the third aspect, where the terminal device is configured to send the PDCCH monitoring capability information of the terminal device to the network device provided in the third aspect, so that the network device may perform a corresponding resource allocation operation according to the PDCCH monitoring capability information of the terminal device.

In a sixth aspect, an embodiment of the present application further provides a communication system, where the system may include at least one network device provided in the third aspect and one or more terminal devices provided in the fourth aspect.

In a seventh aspect, this application embodiment further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the resource allocation method provided in the first aspect.

According to the technical scheme, the terminal equipment capacity information is obtained, the number of blind tests for monitoring the PDCCH and/or the number of non-overlapping CCEs are configured for the first resource according to the terminal equipment capacity information, the first resource comprises N time units in the time domain, and N is a positive integer greater than 2. Furthermore, the problem that the BD/CCE can be allocated in different adjacent spans under the condition of not limiting the BD/CCE and further burden the processing capacity of the UE can be solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a communication system architecture;

FIG. 2 is a diagram of different spans with adjacent BD/CCE allocations;

FIG. 3 is a flowchart of a resource allocation method according to an embodiment of the present application;

fig. 4 is a schematic diagram of a multi-slot span according to an embodiment of the present application;

fig. 5 is a schematic diagram of a multi-slot span partition block according to another embodiment of the present application;

fig. 6 is a schematic structural diagram of a resource allocation apparatus according to another embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a alone, both A and B, and B alone, where A, B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a and b, a and c, b and c, or a, b and c, wherein each of a, b, c may itself be an element or a set comprising one or more elements.

In the present application embodiments, "exemplary," "in some embodiments," "in another embodiment," and the like are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

In the embodiments of the present application, "of", "corresponding" and "corresponding" may be sometimes used in combination, and it should be noted that the intended meaning is consistent when the difference is not emphasized. In the embodiments of the present application, communication and transmission may be mixed sometimes, and it should be noted that the expressed meanings are consistent in a non-emphasized manner. For example, a transmission may include a transmission and/or a reception, may be a noun, and may be a verb.

It should be noted that the terms "first," "second," and the like in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or order. The terms equal to or greater than or equal to in the embodiments of the present application may be used with greater than or equal to, and are applicable to the technical solutions adopted when greater than or equal to, and may also be used with less than or equal to, and are applicable to the technical solutions adopted when less than or equal to, it should be noted that when equal to or greater than or equal to, it is not used with less than; when the ratio is equal to or less than the connection ratio, the ratio is not greater than the connection ratio.

The communication device related to the application mainly comprises network equipment and terminal equipment.

In the embodiment of the present application, the terminal device is a device having a wireless transceiving function, and may be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The terminal device may be fixed or mobile. It should be noted that the terminal device may support at least one wireless communication technology, such as Long Term Evolution (LTE), new Radio (NR), wideband Code Division Multiple Access (WCDMA), and so on. For example, the terminal device may be a mobile phone (mobile phone), a tablet (pad), a desktop, a notebook, a kiosk, a vehicle terminal, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transport security (transportation safety), a wireless network terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (wireless local, personal) station, a personal digital assistant (wlphone), a wireless communication terminal connected to a wireless network, a portable mobile terminal with future function, a wireless communication network, a wireless communication terminal with future evolution (PLMN), or other mobile communication device with a future function, etc. In some embodiments of the present application, the terminal device may also be an apparatus having a transceiving function, such as a system-on-chip. The chip system may include a chip and may also include other discrete devices.

In the embodiment of the present application, a network device is a device that provides a wireless communication function for a terminal device, and may also be referred to as an access network device, a RAN device, and the like. The network device may support at least one wireless communication technology, e.g., LTE, NR, etc. Exemplary network devices include, but are not limited to: a next generation base station (generation node B, gNB), evolved node B (eNB), radio Network Controller (RNC), node B (NB), base Station Controller (BSC), base Transceiver Station (BTS), home base station (e.g., home evolved node B or home node B, HNB), base Band Unit (BBU), transceiving point (TRP), transmitting Point (TP), mobile switching center, etc., in a fifth generation mobile communication system (5 th-generation, 5G). The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in future mobile communication or a network device in a PLMN that is evolved in the future, and the like. In some embodiments, the network device may also be an apparatus, such as a system-on-chip, having functionality to provide wireless communication for the terminal device. By way of example, a system of chips may include a chip and may also include other discrete devices.

Fig. 1 is a schematic diagram of a communication system architecture, and as shown in fig. 1, the communication system of the present application may include at least one network device 101 and one or more terminal devices 102, and the network device 101 and the terminal devices 102 may communicate with each other. Fig. 1 is only an illustration of a communication system architecture, and does not limit the communication system architecture according to the embodiment of the present application. For example, the number of terminal devices and network devices is not limited in the communication system architecture of the embodiments of the present application.

First, some terms related to the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

The time unit group comprises at least two time units, and the time units can be time slots, symbols, frames, subframes and the like. A time unit may include a plurality of sub-time units, which are basic units for communication in the time domain, e.g., a time unit is a slot, and a sub-time unit may be a symbol.

Polymerization Level (AL): also called aggregation level, the aggregation level may represent the number of consecutive Channel Control Elements (CCEs) occupied by one physical downlink Control Channel, that is, one downlink Control Channel is formed by aggregating N CCEs, or one downlink Control Channel may be transmitted on N consecutive CCEs, where N is a positive integer, so that the aggregation level of the physical downlink Control Channel may be N, specifically, the value of N may be 1,2,4,8, or 16, or even may be 32. In practice, the terminal device receives configuration information about the search spaces, which indicates for each search space an aggregation level that the search space needs to be blindly detected.

For example, the number of PDCCH candidates configured with aggregation level AL =2 is 4, that is, there may be 4 PDCCH candidates transmitting PDCCH locations, and each candidate location is AL =2, that is, each PDCCH candidate location occupies 2 CCEs.

Searching the space: the UE monitors the PDCCH candidates set in non-DRX (Discontinuous Reception) subframes, which means that the UE needs to attempt to decode each PDCCH in the set according to the DCI format to be monitored. This set is called the Search Space (Search Space) of the UE. Search space at aggregation level L ∈ {1,2,4,8}

Defined as the set of PDCCH candidates.

The search space is divided into a Common Search Space (CSS) and a UE-specific search space (USS). The common search space is used to transmit control information (cell-level common information) related to Paging (Paging message), RA Response (random access Response), BCCH (broadcast control channel), etc., which is the same for all UEs. The UE-specific search space is used for transmitting control information (UE-level information) related to DL-SCH (downlink synchronization channel), UL-SCH (uplink synchronization channel), and the like. But the common search space may also be used for transmitting control information belonging to a certain UE when the UE specific search space does not have sufficient available resources. However, the common search space can only be used for transmitting smaller DCI format 0/1A/3/3A/1C. (Note: DCI fomat 0/1A/3/3A has the same size)

As can be seen from Table one, for a certain DCI format, there are 22 (6 +2+4+ 2) possible candidates.

Watch 1

The number of blind-detected PDCCHs and the number of non-overlapping CCEs: in the practical application process, according to the aggregation level, the number of the candidate PDCCHs of each aggregation level, the CORESET and the search space set, the identification of the CCE occupied by the corresponding candidate PDCCH of the aggregation level L is determined through a corresponding formula, so that the number of the non-overlapping CCEs is obtained.

Blind detection capability: the number of the largest candidate PDCCHs refers to the number of the candidate PDCCHs which are performed with blind detection at most in a time window, and the number of the largest non-overlapping CCEs refers to the number of the CCEs which are performed with channel estimation at most when the PDCCH blind detection is performed in the time window, so that the PDCCH blind detection without limitation is avoided.

Configuration information: the configuration information refers to indication information sent through a higher layer signaling, and the higher layer signaling may refer to signaling sent by a higher layer protocol layer, where the higher layer protocol layer is at least one protocol layer above a physical layer. The higher layer protocol layer may specifically include at least one of the following protocol layers: a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Resource Control (RRC) layer, and a non-access stratum (NAS) layer. After the terminal device accesses the network, the terminal device receives configuration information sent by the network device, including information for PDCCH, PDSCH, SPS PDSCH, etc., so that the subsequent normal communication can be performed.

And (3) PDCCH blind detection: and decoding DCI carried in the position where the PDCCH is transmitted.

The UE does not know in advance which format DCI is carried by a received PDCCH, nor does it know which PDCCH candidate is used for transmission of the DCI, so the UE must perform PDCCH blind detection to receive the corresponding DCI.

Although the UE does not know in advance which format of DCI is carried by the PDCCH to be received, and does not know which PDCCH candidate is used for the transmission of the DCI, the UE knows which state the UE is in and the DCI information expected to be received in that state. The UE knows its own search space and therefore knows on which CCEs the DCI may be distributed. For different expected information, the UE tries to perform CRC (cyclic redundancy check) check with the CCEs belonging to its own search space using the corresponding X-RNTI (radio network temporary identifier), possible DCI format, and possible Aggregation Level (AL). If the CRC check is successful, the UE knows that this information is needed by itself, i.e. knows the corresponding DCI format, and thus further solves the DCI content.

The UE does not know which aggregation level to use for the PDCCH to be received, so the UE will try all possibilities once. For example: for the common search space, the UE needs to search by Aggregation Level =4 and Aggregation Level =8, respectively. When blind detection is carried out according to AL =4, 16 CCEs need to be subjected to blind detection for 4 times, namely 4 PDCCH candidates exist; when blind detection is carried out according to AL =8, 16 CCEs need to be subjected to blind detection for 2 times, namely 2 PDCCH candidates exist; then for the common space there are a total of 4+2=6 PDCCH candidates. For a specific search space of the UE, the UE needs to blindly detect once according to Aggregation Level =1, 2,4, and 8, and there are 6+ 2=16 PDCCH candidates. (in the first table)

When the UE performs blind detection in the search space, it only needs to attempt decoding on the DCI formats that may occur, and does not need to match all the DCI formats. DCI format that may occur depends on what information the UE desires to receive and the transmission mode.

Total number of PDCCH blind tests performed with respect to UE

According to the first table, 22 candidate candidates can be found when blind detection is performed on a certain DCI format.

When decoding in a certain transmission mode or state (e.g. using RA-RNTI in random access), there are at most 2 possible DCI formats. The total number of PDCCH blind detections made by the UE does not exceed 44 (22 x 2).

The above is a description of the interpretation of terms and related matters.

In the Release-15 and Release-16 NR systems, PDCCH blind detection limit and non-overlapping CCE limit are defined. When the configured PDCCH blind detection number and non-overlapping CCEs exceed the above-mentioned limit, which is called oversubscription (i.e. exceeding limit), the UE discards the ID with the maximum ID (i.e. the highest index) in the USS (common search space set) until the PDCCH blind detection limit and non-overlapping CCE limit are met.

Release-15 employs slot-level PDCCH blind detection restriction and non-overlapping CCE restriction. That is, the gNB and the UE determine whether the above-mentioned limitation is satisfied in one slot, and if not, discard the highest index search space set in this slot.

The slot level PDCCH blind detection restriction and non-overlapping CCE restriction details are as follows:

table two gives the maximum number of monitored PDCCH candidates in one time slot in one cell

Associated with the subcarrier spacing μ is μ e {0,1,2,3}.

Watch two

Table III shows the maximum number of non-overlapping CCEs monitored in one time slot in one service cell

Associated with the subcarrier spacing mu.

Watch III

In a higher frequency band (e.g., above 52.6 Ghz), in order to cope with phase noise and frequency offset, a higher subcarrier spacing (e.g., 480Khz/960 Khz) is adopted, so that the duration of each time slot is relatively short, but the processing capability of the UE is limited, and therefore, the number of PDCCHs and CCEs that the UE can monitor in one time slot is small, or even a reliable PDCCH transmission, such as a blind detection capability of less than 16 CCEs, cannot be guaranteed. At present, a plurality of companies propose to relax PDCCH monitoring of each time slot to monitor multi-time slots, wherein the relaxation is extended to a plurality of time slots, and the number of PDCCH blind tests and the number of non-overlapped CCEs of the UE in a multi-slot span are given. Unlike the existing limitation in one time slot, the problem can be effectively solved by defining PDCCH scheduling and monitoring in a plurality of time slots.

In higher frequency bands, the industry currently proposes to enhance PDCCH monitoring, and to relax the previous slot-based PDCCH monitoring extension to multi-slot, and to define PDCCH monitoring capability with multi-slot span. The invention defines the PDCCH monitoring capability by multi-slot span, and the BD/CCE allocation in multi-slot span is a problem, as shown in FIG. 2, most or all of the BD/CCEs are allocated in different adjacent spans without limitation to the BD/CCEs, which can cause burden to the processing capability of the UE.

In order to solve the above problems, the present application provides the following technical solutions:

fig. 3 is a flowchart of a resource allocation method according to an embodiment of the present application, and as shown in fig. 3, the resource allocation method may include the following steps:

step 301: and acquiring the capability information of the terminal equipment, wherein the capability information of the terminal equipment is used for indicating the monitoring capability of the PDCCH.

For example, the network device may obtain the capability information of the terminal device based on the following ways:

and the terminal equipment reports the terminal equipment capacity information to the network equipment, so that the network equipment acquires the terminal equipment capacity information. Or, the network device acquires the terminal device capability information from other devices, which is not limited herein.

For example, the terminal device may report the terminal device capability information to the network device in the XXX case.

Step 302: according to the terminal equipment capability information, configuring the number of blind tests used for monitoring the PDCCH and/or the number of non-overlapping CCEs for a first resource, wherein the first resource comprises N time units in a time domain, and N is a positive integer greater than 2.

In the embodiment of the present application, the communication between the terminal device and the network device is performed with a time unit as a granularity, where the time unit includes a sub-time unit, and the sub-time unit is a minimum time granularity unit of the communication between the terminal device and the network device. For example, a time cell may include a plurality of sub-time cells. For example, a time unit may be a slot, mini-slot, symbol, frame, subframe, etc. Taking a time unit as an example of a slot, in this case, a sub-time unit is a symbol.

Illustratively, the network device configures, for the first resource, the number of blind detections used for monitoring the PDCCH and/or the number of non-overlapping CCEs according to the capability information of the terminal device.

For example, taking time units as slots as an example, the first resource may be a muti-slot span. Wherein the muti-slot span comprises a plurality of slots.

In some embodiments, according to the terminal device capability information, the number of blind detections and/or the number of non-overlapping CCEs for monitoring the PDCCH may be configured for the first resource based on the following manners:

1. and allocating the configuration mode based on the determined upper limit and the lower limit.

2. Based on the configuration of the block allocation of time cells.

In the configuration manner based on the determined upper and lower limit allocation, the terminal device capability information obtained in step 301 is used to indicate the minimum number of blind tests supported by the terminal device in a time unit and/or the minimum number of non-overlapping CCEs supported by the terminal device in a time unit.

Specifically, the manner for a terminal device (UE) to obtain the minimum number of blind tests supported by the terminal device in a time unit and the minimum number of non-overlapping CCEs supported by the terminal device in a time unit is as follows:

the minimum blind test number supported by the terminal equipment in a time unit of the terminal equipment can be obtained in a table look-up mode; in an embodiment, a time unit is a time slot, and correspondingly, the minimum number m1 of blind tests supported by the terminal device in the time slot may be obtained by querying the following table four:

watch four

The minimum number of non-overlapping CCEs supported by the terminal device in a time unit may also be obtained by looking up a table, in an embodiment, a time unit is a time slot, and correspondingly, the minimum number m2 of non-overlapping CCEs supported by the terminal device in a time slot may be obtained by querying the following table five:

watch five

After acquiring the minimum blind detection number supported by the terminal equipment in a time unit and the minimum number of non-overlapping CCEs (control channel elements) supported by the terminal equipment in the time unit, configuring the number of blind detections used for monitoring the PDCCH and the number of non-overlapping CCEs for the first resource, wherein the configuration mode comprises the following steps:

the number of blind detections of PDCCHs in a first time unit in N time units is larger than the minimum number of blind detections, and the number of non-overlapping CCEs in the first time unit is larger than the minimum number of non-overlapping CCEs. The first time unit is a time unit at a starting position or an ending position in the N time units. Taking time units as slots as an example, as shown in fig. 4, a multi-slot span (muti-slot span) includes 4 slots (i.e., includes 4 time units), so that the time unit (slot) at the starting position in the multi-slot span including 4 time units (slots) is time unit 401, and the time unit (slot) at the ending position is time unit 402.

In the embodiment based on the determined upper and lower limit allocation, the terminal device capability information obtained in step 301 may also be used to indicate the maximum number of blind detections supported by the terminal device in a time unit and/or the maximum number of non-overlapping CCEs supported by the terminal device in a time unit.

Specifically, the manner for the terminal device (UE) to obtain the maximum number of blind tests supported by the terminal device in a time unit and the maximum number of non-overlapping CCEs supported by the terminal device in a time unit may include calculation and obtaining by using a corresponding formula. In an embodiment, a time unit is a time slot, and correspondingly, the maximum number n1 of blind tests supported by the terminal device in the time slot is calculated as follows:

ms denotes the number of cross slots, μ denotes the subcarrier spacing,

the maximum number of blind tests supported in the multi-slot span is represented.

The maximum number n2 of non-overlapping CCEs supported by the terminal device in one time slot is calculated as follows:

ms denotes the number of cross slots, μ denotes the subcarrier spacing,

representing the maximum number of non-overlapping CCEs supported within a multi-slot span.

After acquiring the maximum blind detection number supported by the terminal equipment in a time unit (a time slot) and the maximum number of non-overlapping CCEs supported by the terminal equipment in the time unit, configuring the number of blind detections used for monitoring the PDCCH and the number of non-overlapping CCEs for the first resource, wherein the configuration mode comprises the following steps: and the number of blind detections of PDCCHs in a second time unit in N time units is less than the maximum number of blind detections, and the number of non-overlapped CCEs in the second time unit is less than the maximum number of the non-overlapped CCEs. The second time unit is not located in the time unit of the starting position and the ending position within the N time units.

Taking time units as time slots as an example, as shown in fig. 4, a multi-slot span (muti-slot span) includes 4 time slots (i.e., includes 4 time units), and a time unit (time slot) at position 403 that is not located in the 4 time units (time slots) is the second time unit.

In the implementation based on the determined upper and lower limit allocation, the terminal device capability information obtained in step 301 may also be used to indicate the minimum number of blind tests supported by the terminal device in a time unit, the maximum number of blind tests supported by the terminal device in a time unit, the minimum number of non-overlapping CCEs supported by the terminal device in a time unit, and/or the maximum number of non-overlapping CCEs supported by the terminal device in a time unit.

In an embodiment, a time unit is a time slot, and correspondingly, the acquired capability information of the terminal device may include a minimum number m1 of blind tests supported by the terminal device in the time slot, a minimum number m2 of non-overlapping CCEs supported by the terminal device in the time slot, a maximum number n1 of blind tests supported by the terminal device in the time slot, and a maximum number n2 of non-overlapping CCEs supported by the terminal device in the time slot.

After obtaining (m 1, n 1) and (m 2, n 2), configuring the number of blind tests for monitoring the PDCCH and the number of non-overlapping CCEs for the first resource, wherein the configuration mode comprises:

the number of blind detections of PDCCHs in a first time unit in N time units is larger than the minimum number of blind detections, and the number of non-overlapping CCEs in the first time unit is larger than the minimum number of non-overlapping CCEs. The first time unit is a time unit at a starting position and an ending position in the N time units. The number of blind detections of PDCCHs in a second time unit in N time units is less than the maximum number of blind detections, and the number of non-overlapping CCEs in the second time unit is less than the maximum number of non-overlapping CCEs.

In one embodiment, the restriction indication may be performed by an indicator, for example, by indicating (indicating the order) the time slots (corresponding to the time units) in a multi-slot span (corresponding to the N time units) by an indicator b, where b may be 1,2, … Ms. Ms denotes the number of cross slots.

If b is smaller than Ms and is not 1 (not the head-to-tail time slot in the multi-slot span), that is, in the multi-slot span and does not belong to differential multi-slot spans, the number of blind detections of PDCCH in the corresponding time slot is smaller than n1, and the number of non-overlapping CCEs is smaller than n2.

If b is 1 or Ms (head-to-tail slot in the multi-slot span), that is, within the multi-slot span and belongs to differential multi-slot spans, the number of blind detections of PDCCHs in the corresponding slot is greater than m1, and the number of non-overlapping CCEs is greater than m2.

For example,

the UE reports the first information (m 1, n 1) and the second information (m 2, n 2), μ is 5, μ represents a subcarrier interval, ms is 4, m1=10, m2=14,

i.e. 4 slots (slots) within a multi-slot span, as shown in fig. 4. Wherein, one multi-slot span includes 4 slots, for example, the multi-slot span includes slot 1, slot 2, slot 3 and slot 4, the indication sequence of the corresponding slot 1 is 1, respectively, and is adjacent different spans (span), then the number of blind detections of PDCCH in slot 1 and slot 4 is greater than m1 (10), and the number of non-overlapping CCEs is greater than m2 (14); the number of blind tests of the PDCCH in the time slot 2 and the time slot 3 is less than that of the blind tests

The number of non-overlapping CCEs is less than the above

The number of blind detections of each time slot PDCCH in other multi-time slot spans is similar to the allocation of the number of non-overlapping CCEs, and is not described again.

The above is a scheme based on the determined upper and lower limit allocations.

In the configuration mode based on time cell block allocation, the PDCCH monitoring capability in step 301 is used to indicate M, where M is the number of time cell blocks into which the N time cells are divided, and M is a positive integer. Each of the M time unit blocks into which the N time units are divided includes K time units, where K = N/M, and K, M is a positive integer. In one embodiment, 2 ≦ K may be set, i.e., each time unit block includes at least 2 time units. For example, the time cell block may be understood as a basic unit for PDCCH monitoring.

The number of blind detections of PDCCHs in each time cell block of M time cell blocks into which the N time cells are divided is a first value, and the number of non-overlapping CCEs in each time cell block is a second value, where the first value is obtained according to the maximum number of blind detections of PDDCHs supported by the terminal device in the N time cells and M, and the second value is obtained according to the maximum number of non-overlapping CCEs supported by the terminal device in the N time cells and M.

In one implementation, the first value and the second value may be obtained by:

the first value satisfies the following expression:

l1= P/M, L1 is the first value, and P is the maximum number of blind detections of PDDCHs supported by the terminal device in the N time units, and/or;

the second value satisfies the following expression: a

L2= Q/M, L2 is the second value, and Q is the maximum number of non-overlapping CCEs supported by the terminal device in the N time units.

For example, in this embodiment of the application, the first value may be obtained through a first algorithm according to the maximum number of blind detections of PDDCHs and M supported by the terminal device in the N time units, where the first algorithm may be predefined, may also be determined based on a certain policy, and the like, and this is not limited.

Or, the first value is obtained according to the maximum number of blind detections of PDDCHs supported by the terminal device in a time unit and M, and the second value is obtained according to the maximum number of non-overlapping CCEs supported by the terminal device in a time unit and M.

Taking time units as time slots as an example, as shown in fig. 5, each multi-slot span may be divided into L slot blocks, where L is greater than or equal to 2 and is less than or equal to Ms, that is, each slot block at least includes 2 time slots. Mu is SCS (subcarrier spacing), when Ms takes 4 and mu takes 5,L takes 2, the corresponding total number of blind detections is calculated

Total number of non-overlapping CCEs

Averagely divided into 2 parts, and the number of blind tests of each time slot block is set as

The number of non-overlapping CCEs per slot block is

The above is a scheme based on time cell block allocation.

Fig. 6 is a schematic structural diagram of a resource allocation apparatus according to another embodiment of the present application, and as shown in fig. 6, the resource allocation apparatus may include a processor 601 and a memory 602, where the memory 602 is configured to store at least one instruction, and the instruction is loaded and executed by the processor 601 to implement the resource allocation method according to the embodiment shown in fig. 3.

In one embodiment, the resource allocation apparatus provided in the embodiment shown in fig. 6 may be a chip.

Another embodiment of the present application further provides a chip, where the chip is connected to a memory, or the chip is integrated with a memory (such as the resource allocation apparatus provided in the embodiment shown in fig. 6), and when a program or an instruction stored in the memory is executed, the resource allocation method provided in the embodiment shown in fig. 3 is implemented.

Another embodiment of the present application further provides a network device, which may include a network device body and the resource allocation apparatus provided in the embodiment shown in fig. 6 or a chip connected to a memory provided in the above embodiment. The resource allocation method provided by the embodiment shown in fig. 3 is implemented by executing corresponding instructions through the resource allocation device or a chip connected with a memory. In one embodiment, the network device may be a base station or an access network device.

Another embodiment of the present application further provides a terminal device used in cooperation with the network device, where the terminal device is configured to send the PDCCH monitoring capability information of the terminal device to the network device provided in the third aspect, so that the network device can perform a corresponding resource allocation operation according to the PDCCH monitoring capability information of the terminal device. In one embodiment, the terminal device may be a wireless terminal or a wired terminal. The wireless terminal may be a mobile terminal, such as a mobile phone and a computer with a mobile terminal, for example, a tablet computer or a vehicle-mounted computer. The wireless terminal may also be a system, a mobile station, or the like mobile device.

Another embodiment of the present application also provides a communication system, which may include at least one of the above-described network devices and one or more terminal devices. In one embodiment, the architecture of the communication system may be as shown in fig. 1, that is, the communication system includes one network device (base station) and a plurality of terminal devices, and the plurality of terminal devices and the base station can communicate with each other. The system architecture of FIG. 1 is described above as an example and not a limitation.

Another embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the resource allocation method provided by the embodiment shown in fig. 3.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or in the form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims (11)

1. A method for resource allocation, the method comprising:

acquiring terminal equipment capability information, wherein the terminal equipment capability information is used for indicating the monitoring capability of a downlink control channel (PDCCH);

and configuring the number of blind tests and/or the number of non-overlapping CCEs (control channel elements) for monitoring the PDCCH for a first resource according to the capability information of the terminal equipment, wherein the first resource comprises N time units in a time domain, and N is a positive integer greater than 2.

2. The method according to claim 1, wherein the terminal device capability information is used to indicate a minimum number of blind detections supported by a terminal device in a time unit and/or a minimum number of non-overlapping CCEs supported by the terminal device in a time unit.

3. The method of claim 2, wherein the N time units comprise a first time unit located at a start position or an end position of the N time units, and wherein the number of blind detections of PDCCH in the first time unit is greater than the minimum number of blind detections, and wherein the number of non-overlapping CCEs in the first time unit is greater than the minimum number of non-overlapping CCEs.

4. The method according to any of claims 1-3, wherein the terminal device capability information is used to indicate the maximum number of blind detections supported by a terminal device in a time unit and/or the maximum number of non-overlapping CCEs supported by the terminal device in a time unit.

5. The method of claim 4, wherein the N time units comprise a second time unit, the second time unit is not located at a start position and an end position of the N time units, the number of blind detections of PDCCH in the second time unit is smaller than the maximum number of blind detections, and the number of non-overlapping CCEs in the second time unit is smaller than the maximum number of non-overlapping CCEs.

6. The method of claim 1, wherein the PDCCH monitoring capability indicates M, M being the number of time unit blocks into which the N time units are divided, M being a positive integer.

7. The method of claim 6, wherein each of the M time unit blocks into which the N time units are divided comprises K time units, wherein K = N/M, and wherein K, M is a positive integer.

8. The method according to claim 6 or 7, wherein the number of blind detections for PDCCH in each time unit block in the M time unit blocks into which the N time units are divided is a first value, and the number of non-overlapping CCEs in each time unit block is a second value, the first value is obtained according to the maximum number of blind detections for PDDCH supported by the terminal device in the N time units and M, and the second value is obtained according to the maximum number of non-overlapping CCEs supported by the terminal device in the N time units and M.

9. A resource allocation apparatus, wherein the communication apparatus comprises:

a processor and a memory, wherein the processor is capable of processing a plurality of data,

wherein the memory is configured to store at least one instruction that when executed by the processor is configured to implement the method of any one of claims 1-8.

10. A network device, characterized in that it comprises the apparatus of claim 9.

11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method for resource allocation according to any one of claims 1-8.

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