Information transmission method, device, communication device, and storage medium

Abstract

To provide an information transmission method, a device, a communication device, and a storage medium that meet different transmission needs of different UE types, reduce coupling between random access response control information, improve the transmission flexibility of the random access response control information, and improve communication efficiency.SOLUTION: A method includes a step of transmitting a physical downlink control channel (PDCCH signaling) corresponding to a type of user equipment (UE) on the basis of the type of UE, where the PDCCH signaling carries random access response control information for the UE; different UE types correspond to different PDCCH signaling transmissions; and the random access response control information indicates scheduling information related to a random access response.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present application relates to the field of wireless communication technology, but is not limited to the field of wireless communication technology, and in particular to information transmission methods, devices, communication equipment and storage media. [Background technology]

[0002] The fourth-generation (4G) cellular mobile communication system proposes two technologies to support Internet of Things (IoT) services: machine-type communication (MTC) and narrowband Internet of Things (NB-IoT). These two technologies primarily target scenarios with low speeds and high latency, such as meter reading and environmental monitoring. NB-IoT currently supports speeds of only a few hundred kHz, while MTC currently supports speeds of only a few megahertz. However, with the continued development of IoT services, services such as video surveillance, smart homes, wearable devices, and industrial sensing and monitoring are becoming increasingly popular. These services typically require speeds of tens to hundreds of megahertz, while also having relatively high latency requirements. Therefore, MTC and NB-IoT technologies in LTE have difficulty meeting these requirements.

[0003] In the new radio of 5th generation (5G) cellular mobile communication systems, a new type of user equipment (UE) is used to cover the requirements of such mid-range Internet of Things devices. This new type of UE is called reduced capability UE, or abbreviated as lightweight air interface (NR-lite).

[0004] The requirements for lightweight UE are low cost, low complexity, some degree of coverage enhancement, and power saving. The current 5G New Radio (NR) is designed for high-end terminals, such as high data rates and low time delays, so the current design cannot meet the above requirements for lightweight UE. Therefore, the current NR system needs to be modified to meet the requirements for lightweight UE. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of this, embodiments of the present disclosure provide an information transmission method, apparatus, communication device, and storage medium. [Means for solving the problem]

[0006] According to a first aspect of an embodiment of the present disclosure, there is provided an information transmission method applied to a base station, the method comprising: The method includes transmitting, based on a type of UE, physical downlink control channel (PDCCH) signaling corresponding to the type of UE, wherein the PDCCH signaling carries random access response control information for the UE, different UE types correspond to different PDCCH signaling transmissions, and the random access response control information indicates scheduling information related to a random access response.

[0007] In one embodiment, the control resource sets CORESET to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different.

[0008] In one embodiment, the search spaces of the PDCCH signaling transmission corresponding to the different UE types are different.

[0009] In one embodiment, the step of transmitting PDCCH signaling corresponding to the UE type comprises: transmitting the PDCCH signaling on candidate CCE resources determined according to a resource determination rule; The resource decision rules corresponding to the different UE types are different.

[0010] In one embodiment, the rule parameters of the resource decision rules corresponding to the different UE types are different. The rule parameters include an offset parameter and / or a randomization parameter.

[0011] In one embodiment, the aggregation levels of PDCCH resources of the PDCCH signaling corresponding to the different UE types are different; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling corresponding to the different UE types is different; and / or The candidate retransmission locations of the PDCCH signaling corresponding to the different UE types are different.

[0012] In one embodiment, the step of transmitting PDCCH signaling corresponding to the UE type comprises: transmitting the PDCCH signaling within a random access response window corresponding to a type of the UE; The random access response windows corresponding to the different UE types are different.

[0013] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different.

[0014] In one embodiment, the scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0015] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0016] In one embodiment, the PDSCH resources corresponding to the different UE types scheduled by the random access response control information are different, and the PDSCH resources are used to transmit the random access response.

[0017] In one embodiment, the method comprises: The method further includes a step of carrying random access response control information of the first type UE using PDCCH signaling of the second type UE in response to the bandwidth of the initial wideband part BWP of the first type UE being equal to the bandwidth of CORESET#0.

[0018] In one embodiment, the method further includes transmitting configuration signaling to indicate whether the random access response control information of a first type UE is carried by PDCCH signaling of the first type UE or by PDCCH signaling of a second type UE.

[0019] In one embodiment, the method comprises: receiving a random access preamble sent from the UE; and determining the type of the UE based on type indication information carried in the random access preamble.

[0020] According to a second aspect of an embodiment of the present disclosure, there is provided an information transmission method applied to a UE, the method comprising: receiving physical downlink control channel (PDCCH) signaling using reception parameters corresponding to the UE type, wherein the PDCCH signaling carries the UE random access response control information, different UE types correspond to different PDCCH signaling transmissions, and the random access response control information indicates scheduling information related to the random access response.

[0021] In one embodiment, the receiving parameters include a control resource set CORESET parameter; receiving PDCCH signaling using reception parameters corresponding to the type of UE, The method includes receiving the PDCCH signaling in a control resource set CORESET to which a search space of the PDCCH signaling transmission corresponding to the UE type belongs, wherein the control resource sets CORESET to which the search spaces of the PDCCH signaling transmission corresponding to the different UE types belong are different.

[0022] In one embodiment, the receiving parameters include resource parameters; receiving PDCCH signaling using reception parameters corresponding to the type of UE, The method includes receiving the PDCCH signaling in a search space of the PDCCH signaling transmission corresponding to the UE type using the resource parameter corresponding to the UE type, wherein the search space of the PDCCH signaling transmission corresponding to the different UE types is different.

[0023] In one embodiment, the resource parameters include rule parameters of a resource determination rule; receiving PDCCH signaling using reception parameters corresponding to the type of UE, receiving the PDCCH signaling on candidate CCE resources determined according to a resource determination rule for the PDCCH signaling corresponding to a type of the UE; The resource decision rules corresponding to the different UE types are different.

[0024] In one embodiment, rule parameters of the resource determination rules corresponding to the different UE types are different; The rule parameters include an offset parameter and / or a randomization parameter.

[0025] In one embodiment, the resource parameters are: an aggregation level of PDCCH resources of the PDCCH signaling; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling; and / or candidate retransmission locations of the PDCCH signaling.

[0026] In one embodiment, the receiving parameters include a random access response window parameter; receiving PDCCH signaling using reception parameters corresponding to the type of UE, receiving the PDCCH signaling within the random access response window corresponding to the UE type; The random access response windows corresponding to the different UE types are different.

[0027] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different.

[0028] In one embodiment, receiving PDCCH signaling using reception parameters corresponding to the UE type comprises: descrambling the PDCCH signaling using a descrambling sequence corresponding to the type of UE; The scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0029] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0030] In one embodiment, the method comprises: receiving the random access response using a PDSCH resource scheduled by the random access response control information; The PDSCH resources corresponding to the different UE types are different.

[0031] In one embodiment, the method comprises: The method further includes a step in which, in response to the UE being a first type UE, the base station receives resource indication information for the first type UE carried using PDCCH signaling of a second type UE, the resource indication information being transmitted in response to the bandwidth of the initial wideband portion BWP of the first type UE being equal to the bandwidth of CORESET#0.

[0032] In one embodiment, the method comprises: The method further includes receiving configuration signaling and receiving the random access response control information using PDCCH signaling indicated by the configuration signaling.

[0033] In one embodiment, the method comprises: The method further includes transmitting a random access preamble carrying type indication information indicating the type of the UE to a base station.

[0034] According to a third aspect of an embodiment of the present disclosure, there is provided an information transmission device applied to a base station, the device including: a first transmitting module; The first transmitting module is configured to transmit, based on a type of UE, a physical downlink control channel (PDCCH) signaling corresponding to the type of UE, wherein the PDCCH signaling carries random access response control information for the UE, where different UE types correspond to different PDCCH signaling transmissions, and the random access response control information indicates scheduling information related to a random access response.

[0035] In one embodiment, the control resource sets CORESET to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different.

[0036] In one embodiment, the search spaces of the PDCCH signaling transmission corresponding to the different UE types are different.

[0037] In one embodiment, the first transmitting module comprises: a first transmitting sub-module configured to transmit the PDCCH signaling on a candidate CCE resource determined according to a resource determination rule; The resource decision rules corresponding to the different UE types are different.

[0038] In one embodiment, rule parameters of the resource determination rules corresponding to the different UE types are different; The rule parameters include an offset parameter and / or a randomization parameter.

[0039] In one embodiment, the aggregation levels of PDCCH resources of the PDCCH signaling corresponding to the different UE types are different; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling corresponding to the different UE types is different; and / or The candidate retransmission locations of the PDCCH signaling corresponding to the different UE types are different.

[0040] In one embodiment, the first transmitting module comprises: a second transmitting submodule configured to transmit the PDCCH signaling within a random access response window corresponding to a type of the UE; The random access response windows corresponding to the different UE types are different.

[0041] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different.

[0042] In one embodiment, the scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0043] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0044] In one embodiment, the PDSCH resources corresponding to the different UE types scheduled by the random access response control information are different, and the PDSCH resources are used to transmit the random access response.

[0045] In one embodiment, the device comprises: The first type UE further includes a second transmitting module configured to carry random access response control information of the first type UE using PDCCH signaling of the second type UE in response to the bandwidth of the initial wideband part BWP of the first type UE being equal to the bandwidth of CORESET#0.

[0046] In one embodiment, the device comprises: and a third transmitting module configured to transmit configuration signaling to indicate whether the random access response control information of a first type UE is carried by PDCCH signaling of the first type UE or by PDCCH signaling of a second type UE.

[0047] In one embodiment, the device comprises: a first receiving module configured to receive a random access preamble transmitted from the UE; and a first determination module configured to determine a type of the UE based on type indication information carried in the random access preamble.

[0048] According to a fourth aspect of the embodiment of the present disclosure, there is provided an information transmission device applicable to a UE, the device including: a second receiving module; The second receiving module is configured to receive a physical downlink control channel (PDCCH) signaling using a receiving parameter corresponding to a type of the UE, the PDCCH signaling carrying the UE random access response control information, different UE types corresponding to different PDCCH signaling transmissions, and the random access response control information indicating scheduling information related to a random access response.

[0049] In one embodiment, the receiving parameters include a control resource set CORESET parameter; The second receiving module includes: a first receiving sub-module configured to receive the PDCCH signaling in a control resource set CORESET to which a search space of the PDCCH signaling transmission corresponding to the UE type belongs, wherein the control resource sets CORESET to which the search spaces of the PDCCH signaling transmission corresponding to the different UE types belong are different first receiving sub-modules.

[0050] In one embodiment, the receiving parameters include resource parameters; The second receiving module includes: a second receiving sub-module configured to receive the PDCCH signaling in a search space of the PDCCH signaling transmission corresponding to the type of UE using the resource parameter corresponding to the type of UE, where the search spaces of the PDCCH signaling transmission corresponding to the different types of UE are different;

[0051] In one embodiment, the resource parameters include rule parameters of a resource determination rule; The second receiving module includes: a third receiving sub-module configured to receive the PDCCH signaling on candidate CCE resources determined according to a resource determination rule for the PDCCH signaling corresponding to a type of the UE; The resource decision rules corresponding to the different UE types are different.

[0052] In one embodiment, rule parameters of the resource determination rules corresponding to the different UE types are different; The rule parameters include an offset parameter and / or a randomization parameter.

[0053] In one embodiment, the resource parameters are: an aggregation level of PDCCH resources of the PDCCH signaling; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling; and / or candidate retransmission locations of the PDCCH signaling.

[0054] In one embodiment, the receiving parameters include a random access response window parameter; The second receiving module includes: a fourth receiving submodule configured to receive the PDCCH signaling within the random access response window corresponding to a type of the UE; The random access response windows corresponding to the different UE types are different.

[0055] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different.

[0056] In one embodiment, the second receiving module comprises: a fifth receiving sub-module configured to descramble the PDCCH signaling using a descrambling sequence corresponding to a type of the UE; The scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0057] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0058] In one embodiment, the device comprises: a third receiving module configured to receive the random access response using a PDSCH resource scheduled by the random access response control information; The PDSCH resources corresponding to the different UE types are different.

[0059] In one embodiment, the device comprises: The base station further includes a fourth receiving module configured to receive, in response to the UE being a first type UE, resource indication information for the first type UE carried using PDCCH signaling of the second type UE, transmitted in response to the bandwidth of the initial wideband portion BWP of the first type UE being equal to the bandwidth of CORESET#0.

[0060] In one embodiment, the device comprises: The radio access control information further includes a fifth receiving module configured to receive configuration signaling and receive the random access response control information using PDCCH signaling indicated by the configuration signaling.

[0061] In one embodiment, the device comprises: The UE further includes a second transmitting module configured to transmit a random access preamble carrying type indication information indicating a type of the UE to a base station.

[0062] According to a fifth aspect of an embodiment of the present disclosure, there is provided a communication device including a processor, a transceiver, a memory, and a program stored in the memory and executable by the processor, wherein the processor, when executing the executable program, performs the steps of the information transmission method provided by the first or second aspect.

[0063] According to a sixth aspect of an embodiment of the present disclosure, there is provided a storage medium having an executable program stored thereon, which, when executed by a processor, realizes the steps of the information transmission method described in the first or second aspect. [Effects of the Invention]

[0064] In the information transmission method, device, communication device, and storage medium provided by the embodiments of the present disclosure, a base station transmits physical downlink control channel (PDCCH) signaling corresponding to a UE type based on the UE type, and the PDCCH signaling carries random access response control information for the UE, where different UE types correspond to different PDCCH signaling transmissions, and the random access response control information indicates scheduling information related to the random access response. In this way, PDCCH signaling corresponding to a UE type is used to carry random access response control information corresponding to the UE type, while PDCCH signaling corresponding to a UE type is used to carry random access response control information, thereby meeting different transmission needs of different UE types and improving communication efficiency. On the other hand, different types of PDCCH signaling can respectively meet the transmission needs of random access response control information of different UE types, thereby reducing the coupling between the random access response control information of different UE types and improving the transmission flexibility of random access response control information.

[0065] It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the embodiments of the present disclosure. [Brief explanation of the drawings]

[0066] The drawings herein, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention consistent with the present disclosure and, together with the specification, serve to explain the principles of embodiments of the invention. [Figure 1] 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment; [Figure 2] 1 is a schematic flowchart of an information transmission method according to an exemplary embodiment; [Figure 3]FIG. 2 is a schematic diagram of CCH resource candidate locations shown by an exemplary embodiment; [Figure 4] 1 is a schematic flowchart of an information transmission method according to an exemplary embodiment; [Figure 5] 4 is a schematic flowchart of another information transmission method illustrated by an exemplary embodiment; [Figure 6] 10 is a flowchart of another information transmission method illustrated by an exemplary embodiment. [Figure 7] 1 is a block diagram of an information transmission device according to an exemplary embodiment; [Figure 8] 1 is a block diagram of an information transmission device according to an exemplary embodiment; [Figure 9] 1 is a block diagram of an apparatus for information transmission according to an exemplary embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0067] Illustrative embodiments will now be described in detail, examples of which are illustrated in the drawings. When the following description refers to the drawings, like numerals in different drawings represent the same or similar elements unless otherwise stated. The embodiments described in the following illustrative examples do not represent all embodiments consistent with embodiments of the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of embodiments of the present invention, as detailed in the appended claims.

[0068] Terms used in the embodiments of the present disclosure are merely for the purpose of describing particular embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "the," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, the term "and / or" as used herein refers to any and all possible combinations of one or more of the associated listed items.

[0069] In embodiments of the present disclosure, terms such as first, second, and third may be used to describe various pieces of information, but it should be understood that such information should not be limited to these terms. These terms are merely used to distinguish between the same types of information. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information, without departing from the scope of embodiments of the present disclosure. Depending on the context, the word "if" as used herein can be interpreted as "when" or "in the case of" or "responsive to a determination."

[0070] 1, which shows a schematic block diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in FIG. 1, the wireless communication system is a cellular mobile communication technology-based communication system, and the wireless communication system may include several terminals 11 and several base stations 12.

[0071] The terminal 11 may refer to a device that provides a user with voice and / or data connectivity. The terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN). The terminal 11 may be an Internet of Things terminal, such as a sensor device, a mobile phone (also called a "cellular" phone), or a computer with an Internet of Things terminal. For example, the terminal 11 may be a fixed, portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted device. For example, the terminal 11 may be a station (STA), subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, the terminal 11 may be an unmanned aerial vehicle device or a vehicle-mounted device, such as a trip computer with wireless communication capabilities or a wireless communication device connected to the trip computer. Alternatively, the terminal 11 may be a roadside device, such as a street lamp, a traffic light, or other roadside device with wireless communication capabilities.

[0072] The base station 12 may be a network side device in a wireless communication system. The wireless communication system may be a 4th generation mobile communication (4G) system, also called a Long Term Evolution (LTE) system. Alternatively, the wireless communication system may be a 5G system, also called a new air interface (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a system that is the next generation of the 5G system. An access network in a 5G system may be called a New Generation-Radio Access Network (NG-RAN) or an MTC system.

[0073] The base station 12 may be an evolved base station (eNB) employed in a 4G system. Alternatively, the base station 12 may be a base station (gNB) employing a centralized-distributed architecture in a 5G system. When the base station 12 employs a centralized-distributed architecture, it typically includes a central unit (CU) and at least two distributed units (DUs). The centralized unit is provided with protocol stacks for a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer. The distributed units are provided with a protocol stack for a physical (PHY) layer. The embodiments of the present disclosure are not limited to a specific implementation of the base station 12.

[0074] A wireless connection can be established between the base station 12 and the terminal 11 via a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on a fourth generation mobile communication network technology (4G) standard. Alternatively, the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new radio. Alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

[0075] In some embodiments, an E2E (End to End) connection can be established between the terminals 11, for example, in scenarios such as V2V (Vehicle to Vehicle) communication, V2I (Vehicle to Infrastructure) communication, and V2P (Vehicle to Pedestrian) communication in vehicle-to-everything (V2X) Internet communication.

[0076] In some embodiments, the wireless communication system may further include a network manager 13 .

[0077] The base stations 12 are each connected to a network management device 13. The network management device 13 may be a core network device in a wireless communication system, for example, a mobility management entity (MME) in an evolved packet core network (EPC). Alternatively, the network management device may be another core network device, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). The implementation of the network management device 13 is not limited in the embodiments of the present disclosure.

[0078] Acting entities according to the embodiments of the present disclosure include, but are not limited to, UEs such as terminals supporting 5G cellular mobile communications, and base stations.

[0079] In an application scenario of an embodiment of the present disclosure, when the physical random access channel (PRACH) resources used by UEs currently performing random access have the same time and frequency, the random access responses of these UEs are in the same physical downlink shared channel (PDSCH) resources and scheduled by the same PDCCH signaling, i.e., by the same random access response (RAR) PDCCH signaling. The search space scheduled by the RAR carried in NR is called a type-1 PDCCH common search space (type-1 PDCCH CSS), and the carried PDCCH signaling is scrambled and cyclically redundancy checked (CRC) by the random access radio network temporary identifier (RA-RNTI).

[0080] The search space of the RAR PDCCH signaling determines the corresponding CCE resource based on the resource determination rule in the corresponding CORESET, and the resource determination rule can be expressed by Equation (1).

number

[0081]

number

number

number

number

[0082] n time units after the UE sends the random access request, the user starts monitoring the RAR PDCCH signaling in the type 1 PDCCH CSS. The entire monitoring continues for X time units, and if the user does not monitor the RAR PDCCH signaling within X time units, it is declared that the current random access has failed. The x time units are called the random access response window.

[0083] Lightweighted UEs and non-lightweighted NR UEs must both monitor random access responses, including using the same RAR PDCCH and RAR PDSCH resources. Although random access PDCCH signaling is transmitted in one search space, in practice, the capabilities of lightweighted UEs and non-lightweighted NR UEs are different, and the transmission and reception process of sharing one set of random access resources limits flexibility.

[0084] The information transmission method provided by this embodiment can be applied to a base station in a mobile communication network, and as shown in FIG. 2, the information transmission method can include the following steps 201 to 203.

[0085] Step 201: based on a type of UE, send PDCCH signaling corresponding to the type of UE, where the PDCCH signaling carries random access response control information for the UE, where different UE types correspond to different PDCCH signaling transmissions, and the random access response control information indicates scheduling information related to the random access response.

[0086] The different types of UEs may be UEs having different data transmission capabilities and / or different signal reception capabilities, where the data transmission capabilities may include a transmission rate, a transmission time delay, a cache size, an ability to receive a transmission block size, etc. There may be two or more types of UEs.

[0087] For example, the first type UE and the second type UE may be two types of UEs. The first type UE may be a reduced capability UE in a 5G cellular mobile communication system. The second type UE may be a non-lightweight UE in a 5G cellular mobile communication system, such as an enhanced mobile broadband (eMBB) terminal. Compared with the second type UE, the first type UE may have a larger cache, a smaller number of transmissions, a higher transmission time delay, and a larger transmission block received during word reception.

[0088] The scheduling information of the random access response may include PDSCH resource information, modulation and coding policy information, etc. of the random access response. The scheduling information of the random access response may be downlink control information (DCI) transmitted using a PDCCH resource. The base station carries the random access response control information in PDCCH signaling and can transmit the random access response based on the transmission resource indicated by the random access response control information. The UE receives and analyzes the random access response control information and receives the random access response according to the PDSCH resource and modulation and coding policy indicated by the random access response control information. Here, the PDCCH signaling may be RAR PDCCH signaling.

[0089] The random access response control information of the first type UE and the random access response control information of the second type UE are carried in the same PDCCH signaling. The first type UE and the second type UE may be UEs with different data transmission capabilities and / or different signal reception capabilities. Therefore, the same PDCCH signaling needs to simultaneously satisfy the data transmission requirements and / or signal quality requirements of the first type UE and the second type UE. The PDCCH signaling transmission resource range is limited by both the first type UE and the second type UE, which reduces the flexibility of the PDCCH signaling transmission resource configuration.

[0090] Here, the first type PDCCH signaling transmission and the second type PDCCH signaling transmission may be used to carry random access response control information corresponding to the first type UE and the second type UE, respectively. The first type PDCCH signaling transmission is different from the second type PDCCH signaling transmission. Here, the first type PDCCH signaling transmission being different from the second type PDCCH signaling transmission may refer to the type of the first type PDCCH signaling being different from the type of the second type PDCCH signaling. For example, carrying the random access response control information using different types of DCI may also refer to the first type PDCCH signaling and the second type PDCCH signaling being the same type of signaling but transmitted using different transmission schemes (e.g., different transmission resources, different transmission parameters, and / or different transmission rules, etc.).

[0091] For example, the first type PDCCH signaling transmission and the second type PDCCH signaling transmission may have different transmission resources, for example, the search space to which the first type PDCCH signaling transmission belongs may be different from the search space of the second type PDCCH signaling transmission, the transmission periodicity of the first type PDCCH signaling transmission may be different from the transmission periodicity of the second type PDCCH signaling transmission, or the transmission bandwidth of the first type PDCCH signaling transmission may be different from the transmission bandwidth of the second type PDCCH signaling transmission.

[0092] Different types of PDCCH signaling transmission can meet the data transmission requirements and / or signal quality requirements of different types of UEs, for example, when a first type of UE has high requirements for signal quality, it can use a first type of PDCCH signaling transmission with frequency domain resources with low interference.

[0093] When receiving PDCCH signaling, the UE can receive PDCCH signaling corresponding to its type based on reception parameters corresponding to its own UE type. The reception parameters may be pre-configured in the UE. The reception parameters may include transmission resource parameters of the PDCCH signaling, and / or PDCCH descrambling sequences, and / or random access search space-time-frequency resource parameters to which the PDCCH signaling belongs, etc.

[0094] Illustratively, the first type UE may receive the first type PDCCH signaling based on reception parameters corresponding to the first type UE.

[0095] The random access response control information carried in different PDCCH signaling transmissions may be different, and different random access response control information may indicate scheduling information of different random access responses, so that different types of UEs can receive their respective random access responses on different transmission resources, thereby improving the flexibility of random access response transmission and reducing the coupling between the random access responses of different types of UEs.

[0096] In this way, PDCCH signaling transmission corresponding to the UE type is used to respectively carry random access response control information corresponding to the UE type, on the one hand, PDCCH signaling transmission corresponding to the UE type is used to carry the random access response control information, thereby meeting the different transmission needs of different UE types and improving communication efficiency, and on the other hand, PDCCH signaling transmission of different types can respectively meet the transmission needs of random access response control information of different UE types, thereby reducing the coupling between the random access response control information of different UE types and improving the flexibility of transmission of random access response control information.

[0097] In one embodiment, the control resource sets CORESET to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different.

[0098] The CORESET includes resources such as the frequency band that the PDCCH signaling in the search space occupies in the frequency domain and the number of OFDM symbols that it occupies in the time domain.

[0099] The base station may use different CORESETs to transmit PDCCH signaling corresponding to different UE types, respectively.

[0100] A UE may receive PDCCH signaling based on the CORESET corresponding to its own UE type.

[0101] Illustratively, CORESET#1 may be used for configuration of non-weighted UEs, and CORESET#0 may be used for configuration of weighted UE users.

[0102] In this way, random access response control information of different UE types can be carried in PDCCH signaling carried in different CORESETs, thereby realizing the use of different PDCCH signaling to carry random access response control information of different UE types.

[0103] In one embodiment, the search spaces of the PDCCH signaling transmission corresponding to the different UE types are different.

[0104] Here, PDCCH signaling corresponding to different UE types can be carried in different search spaces.

[0105] Here, the reception parameters may be resource parameters of a search space, and different types of UEs can respectively receive respective PDCCHs in search spaces corresponding to respective UE types based on the resource parameters of the respective search spaces.

[0106] The resource parameters may include frequency domain parameters and / or time domain parameters of the search space, where different frequency domain parameters may indicate different frequency domain resources and different time domain parameters may indicate different time domain resources.

[0107] A search space corresponding to the type of UE may be configured based on different UE types, for example, a search space corresponding to the transmission capabilities of different UE types may be configured.

[0108] In this way, PDCCH signaling corresponding to different UE types is carried in different search spaces, and the search space to which the PDCCH signaling belongs is matched to the corresponding UE type, thereby improving the flexibility of selecting PDCCH signaling to carry random access response control information. Furthermore, different types of PDCCH signaling transmission can respectively meet the transmission needs of different types of UE for random access response control information, reducing the coupling between the random access response control information of different types of UE, and reducing the error rate caused by data decoding during decoupling, thereby improving the success rate of UE receiving PDCCH signaling.

[0109] In one embodiment, the step of transmitting PDCCH signaling corresponding to the UE type comprises: transmitting the PDCCH signaling on candidate CCE resources determined according to a resource determination rule; The resource decision rules corresponding to the different UE types are different.

[0110] Here, different types of UEs use different rule parameters in the shared CORESET to determine different CCE resources.

[0111] A CCE resource is the basic building block of a shared search space transmission resource that carries PDCCH signaling. A search space transmission that carries PDCCH signaling can have one or more CCE resources.

[0112] The CCE resource carrying the PDCCH signaling can be determined using the resource determination rule shown in Equation 1. Different resource determination rules can result in different CCE resources.

[0113] Here, in the shared CORESET for different types of UEs, different resource determination rules can be set for different UE types, thereby obtaining different candidate CCE resources, which can carry PDCCH signaling for different UE types.

[0114] In this way, by setting different resource determination rules for different UE types, the random access response control information of different UE types can be carried in PDCCH signaling carried by different CCE resources, thereby realizing the random access response control information of different UE types being carried using different PDCCH signaling transmissions.

[0115] In one embodiment, rule parameters of the resource determination rules corresponding to the different UE types are different; The rule parameters include an offset parameter and / or a randomization parameter.

[0116] Different offset and / or randomization parameters may be used for different UE types.

[0117] Here, the offset parameter may be 0. According to different offset parameters, different CCE resources can be obtained by the resource determination rule, thereby realizing different PDCCH signaling transmission resources; Alternatively, certain rule parameters of the resource determination rules may be randomized, with different randomization parameters resulting in different CCE resources.

[0118] For example, by setting an offset parameter X in addition to the resource determination rule shown in equation (1), the resource determination rule shown in equation (2) can be obtained, and the CCE resources obtained from the resource determination rule shown in equation (1) and the resource determination rule shown in equation (2) are different.

number

number

number

number

number

[0119] For a first type UE, X may not be equal to 0, and for a second type UE, X may be 0. In this way, the second type UE can transmit the second PDCCH signaling using a CCE resource in the related art. The first type UE can transmit the first PDCCH signaling using a CCE resource different from that of the second type UE.

[0120] For example, for a non-weighted UE configuration, X may be 0, and for a weighted UE configuration, X may not be equal to 0.

[0121] The offset parameter may be an offset that determines the specific parameter of the rule relative to an existing resource. For example, the offset parameter in the formula

number

[0122] Illustratively, for a non-weighted UE configuration:

number

number

[0123] In one embodiment, the aggregation levels of PDCCH resources of the PDCCH signaling corresponding to the different UE types are different; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling corresponding to the different UE types is different; and / or The candidate retransmission locations of the PDCCH signaling corresponding to the different UE types are different.

[0124] The aggregation level may be the number of CCE resources that make up one PDCCH resource. The aggregation level may be 1, 2, 4, or 8. The aggregation level may characterize the number of CCE resources in a PDCCH resource, for example, an aggregation level of 8 means that the number of CCE resources in a PDCCH resource is 8.

[0125] The PDCCH resources of different aggregation levels are different, so that the PDCCH resources of different aggregation levels are used to transmit PDCCH signaling corresponding to different UE types, respectively, and thus different PDCCH signaling can be used to carry the random access response control information of different types of UEs.

[0126] The search space includes multiple CCE resources, for example, 88 resources. PDCCH resources of the same aggregation level may exist at multiple positions in the search space. That is, there are multiple candidate transmission positions for PDCCH resources. Here, the first PDCCH signaling and the second PDCCH signaling can be transmitted using PDCCH resources at different candidate transmission positions. In this way, different PDCCH signaling can be used to carry random access response control information for different types of UEs.

[0127] 3, when there are n CCE resources in the search space, where n=88 is taken as an example, a PDCCH resource having an aggregation level of 8 may have two candidate positions, candidate position 1 and candidate position 2, in the search space. The PDCCH resource at candidate position 1 may be used to transmit a first PDCCH signaling, and the PDCCH resource at candidate position 2 may be used to transmit a second PDCCH signaling.

[0128] During the retransmission of the PDCCH signaling, the candidate retransmission positions used by the PDCCH signaling of different UE types may be different, thus realizing that different PDCCH signaling is used to carry the random access response control information of different UE types for the retransmission of the PDCCH signaling.

[0129] In one embodiment, the step of transmitting PDCCH signaling corresponding to the UE type comprises: transmitting the PDCCH signaling within a random access response window corresponding to a type of the UE; The random access response windows corresponding to the different UE types are different.

[0130] n time units after the user transmits the random access preamble, the UE starts monitoring PDCCH signaling in the type 1 PDCCH CSS. The period during which the UE monitors PDCCH signaling is called the random access response window. The random access response window can last for M time units, and if the user does not monitor PDCCH signaling within M time units, it is declared that the current random access has failed.

[0131] Here, for different types of UE types, the base station can send PDCCH signaling in different random access response windows, and the UE monitors PDCCH signaling in different random access response windows based on its own type.

[0132] In this way, by setting different random access response windows for different UE types, the random access response control information of different UE types is carried in PDCCH signaling using the random access response window, thereby realizing the random access response control information of different UE types being carried using different PDCCH signaling.

[0133] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different.

[0134] n time units after the user transmits the random access preamble, the UE starts monitoring PDCCH signaling in the type 1 PDCCH CSS. The period during which the UE monitors PDCCH signaling is called the random access response window. The random access response window can last for M time units, and if the user does not monitor PDCCH signaling within M time units, it is declared that the current random access has failed.

[0135] Here, for different types of UEs, the values ​​of N and / or M are different to obtain different random access response windows.

[0136] In one embodiment, the scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0137] To distinguish between PDCCH signaling corresponding to different UE types, the base station may scramble the PDCCH signaling corresponding to different UE types using different scrambling sequences, respectively.

[0138] Illustratively, a scrambling sequence corresponding to a first type of UE is used to scramble a first type of PDCCH signaling transmission, and a scrambling sequence corresponding to a second type of UE is used to scramble a second type of PDCCH signaling transmission.

[0139] For example, the first-type PDCCH signaling transmission and the second-type PDCCH signaling transmission may be scrambled using UE identifiers corresponding to the first-type UE and the second-type UE, respectively, where the UE identifier of the first-type UE is different from the UE identifier of the second-type UE, and the difference between the UE identifier of the first-type UE and the UE identifier of the second-type UE may be due to a different number of identifier bits and / or a different coding scheme.

[0140] The receiving parameter may be the descrambling sequence of the UE. The scrambling sequence and the descrambling sequence of the same type of UE are the same. After receiving the PDCCH signaling, the UE can descramble the PDCCH signaling using its corresponding descrambling sequence. If the descrambling is successful, the UE determines that the PDCCH signaling is the PDCCH signaling transmitted to itself.

[0141] In this way, different types of PDCCH signaling are carried in the same search space, improving the carrying capacity of the search space and improving communication efficiency.

[0142] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0143] Here, different RA-RNTIs can be assigned to different types of UEs, and the base station scrambles the PDCCH signaling using the RA-RNTI corresponding to the type of UE.

[0144] After receiving the PDCCH signaling, the UE side can descramble it using the RA-RNTI corresponding to its own type.

[0145] For example, the RA-RNTI of the related art can be used for a non-lightweight UE, and a different RA-RNTI can be newly defined for a lightweight UE according to a communication protocol, or a different RA-RNTI can be configured by a base station.

[0146] For example, the calculation method of the RA-RNTI for different types of UEs can be defined according to the communication protocol. The RA-RNTI corresponding to the first type of UE can be calculated using the calculation method shown in Equation (3) in the related art. RA-RNTI=1+t_id+10*f_id (3)

[0147] t_id represents the subframe identifier (ID) number (range 0-9) of the starting position for transmitting the random access preamble, and f_id represents the f_RA value (range 0-5) in the four-element group.

[0148] For the second type UE, the calculation parameters are adjusted based on equation (3) to calculate the RA-RNTI of the second type UE so that the RA-RNTI of the first type UE is different from the RA-RNTI of the second type UE. For example, the constant 1 is adjusted based on equation (3) to obtain equation (4), and the RA-RNTI of the second type UE can be calculated using the calculation method shown in equation (4). RA-RNTI=2+t_id+10*f_id (4)

[0149] In one embodiment, the PDSCH resources corresponding to the different UE types scheduled by the random access response control information are different, and the PDSCH resources are used to transmit the random access response.

[0150] The random access response control information in the PDCCH signaling may be used to schedule PDSCH resources for the random access response, where different PDSCH resource transmission random access responses may be scheduled for different UE types.

[0151] In this way, by using the random access response of the UE to transmit the PDSCH resource corresponding to the UE type, on the one hand, the PDSCH resource corresponding to the UE type is used to transmit the random access response, which meets the different transmission needs of different UE types and improves communication efficiency, and on the other hand, reduces the coupling between the random access responses of different types of UE and improves the flexibility of transmitting the random access response.

[0152] In one embodiment, the method comprises: The method further includes a step of carrying random access response control information of the first type UE using a PDCCH signaling transmission of the second type UE in response to the bandwidth of the initial wideband part BWP of the first type UE being equal to the bandwidth of CORESET#0.

[0153] The base station may configure PDCCH signaling to carry random access response control information for different UEs, for example, the base station may configure a second type of PDCCH signaling transmission to carry the random access response control information for different UEs.

[0154] In the search space configuration, if the BWPs of different types of UEs are the same, the different types of UEs can monitor the same search space, that is, the PDCCH signaling transmissions of the different types of UEs are the same.

[0155] For example, whether a non-lightweight UE and a lightweight UE use different PDCCH signaling transmissions may be configured via the base station or may be determined based on other conditions. For example, if the bandwidth of the initial BWP of the lightweight UE is equal to the bandwidth of CORESET#0, the lightweight UE may be configured to carry random access response control information using the same PDCCH signaling transmission as the non-lightweight UE.

[0156] In this way, the base station can flexibly configure the PDCCH used by the UE.

[0157] In one embodiment, the method further includes transmitting configuration signaling to indicate whether the random access response control information of the first type UE is carried by PDCCH signaling of the first type UE or by PDCCH signaling of the second type UE.

[0158] The base station may configure PDCCH signaling to carry random access response control information for different types of UEs, for example, the base station may configure a first type of UE to carry random access response control information using a second type of PDCCH signaling transmission for a second type of UE.

[0159] In this way, the base station can flexibly configure the PDCCH used by the UE.

[0160] In one embodiment, as shown in FIG. 4, the method further includes the following steps 202-203.

[0161] Step 202: receiving a random access preamble sent from the UE;

[0162] Step 203: determining the type of the UE according to the type indication information carried in the random access preamble.

[0163] When a UE enters a base station through a two-step random access method or a four-step random access method, the UE first sends a random access preamble to the base station, and the UE can make type indication information indicating its own type be carried in the random access preamble.

[0164] After receiving the random access preamble, the base station determines the type of the UE according to the type indication information, and then sends PDCCH signaling corresponding to the type.

[0165] This embodiment provides an information transmission method, which can be applied to a UE in a mobile communication network. As shown in FIG. 5, the information transmission method can include the following steps 501 to 502.

[0166] Step 501: receive PDCCH signaling using receiving parameters corresponding to the UE type, the PDCCH signaling carries the UE random access response control information, different UE types correspond to different PDCCH signaling transmissions, and the random access response control information indicates scheduling information related to the random access response.

[0167] The different types of UEs may be UEs having different data transmission capabilities and / or different signal reception capabilities, where the data transmission capabilities may include a transmission rate, a transmission time delay, a cache size, an ability to receive a transmission block size, etc. There may be two or more types of UEs.

[0168] For example, the first type UE and the second type UE may be two types of UEs. The first type UE may be a reduced capability UE in a 5G cellular mobile communication system. The second type UE may be a non-lightweight UE in a 5G cellular mobile communication system, such as an enhanced mobile broadband (eMBB) terminal. Compared with the second type UE, the first type UE may have a larger cache, a smaller number of transmissions, a higher transmission time delay, and a larger transmission block received during word reception.

[0169] The scheduling information of the random access response may include PDSCH resource information, modulation and coding policy information, etc. of the random access response. The scheduling information of the random access response may be downlink control information (DCI) transmitted using a PDCCH resource. The base station carries the random access response control information in PDCCH signaling and can transmit the random access response based on the transmission resource indicated by the random access response control information. The UE receives and analyzes the random access response control information and receives the random access response according to the PDSCH resource and modulation and coding policy indicated by the random access response control information. Here, the PDCCH signaling may be RAR PDCCH signaling.

[0170] The random access response control information of the first type UE and the random access response control information of the second type UE are carried in the same PDCCH signaling. The first type UE and the second type UE may be UEs with different data transmission capabilities and / or different signal reception capabilities. Therefore, the same PDCCH signaling needs to simultaneously satisfy the data transmission requirements and / or signal quality requirements of the first type UE and the second type UE. The PDCCH signaling transmission resource range is limited by both the first type UE and the second type UE, which reduces the flexibility of the PDCCH signaling transmission resource configuration.

[0171] Here, the first type PDCCH signaling transmission and the second type PDCCH signaling transmission may be used to carry random access response control information corresponding to the first type UE and the second type UE, respectively. The first type PDCCH signaling transmission is different from the second type PDCCH signaling transmission. Here, the first type PDCCH signaling transmission being different from the second type PDCCH signaling transmission may refer to the type of the first type PDCCH signaling being different from the type of the second type PDCCH signaling. For example, carrying the random access response control information using different types of DCI may also refer to the first type PDCCH signaling and the second type PDCCH signaling being the same type of signaling but transmitted using different transmission schemes (e.g., different transmission resources, different transmission parameters, and / or different transmission rules, etc.).

[0172] For example, the first type PDCCH signaling transmission and the second type PDCCH signaling transmission may have different transmission resources, for example, the search space to which the first type PDCCH signaling transmission belongs may be different from the search space of the second type PDCCH signaling transmission, the transmission periodicity of the first type PDCCH signaling transmission may be different from the transmission periodicity of the second type PDCCH signaling transmission, or the transmission bandwidth of the first type PDCCH signaling transmission may be different from the transmission bandwidth of the second type PDCCH signaling transmission.

[0173] Different types of PDCCH signaling transmission can meet the data transmission requirements and / or signal quality requirements of different types of UEs, for example, when a first type of UE has high requirements for signal quality, it can use a first type of PDCCH signaling transmission with frequency domain resources with low interference.

[0174] When receiving PDCCH signaling, the UE can receive PDCCH signaling corresponding to its type based on reception parameters corresponding to its own UE type. The reception parameters may be pre-configured in the UE. The reception parameters may include transmission resource parameters of the PDCCH signaling, and / or PDCCH descrambling sequences, and / or random access search space-time-frequency resource parameters to which the PDCCH signaling belongs, etc.

[0175] Illustratively, the first type UE may receive the first type PDCCH signaling based on reception parameters corresponding to the first type UE.

[0176] The random access response control information carried in different PDCCH signaling transmissions may be different, and different random access response control information may indicate scheduling information of different random access responses, so that different types of UEs can receive their respective random access responses on different transmission resources, thereby improving the flexibility of random access response transmission and reducing the coupling between the random access responses of different types of UEs.

[0177] In this way, PDCCH signaling transmission corresponding to the UE type is used to respectively carry random access response control information corresponding to the UE type, on the one hand, PDCCH signaling transmission corresponding to the UE type is used to carry the random access response control information, thereby meeting the different transmission needs of different UE types and improving communication efficiency, and on the other hand, PDCCH signaling transmission of different types can respectively meet the transmission needs of random access response control information of different UE types, thereby reducing the coupling between the random access response control information of different UE types and improving the flexibility of transmission of random access response control information.

[0178] In one embodiment, the receiving parameters include a control resource set CORESET parameter; receiving PDCCH signaling using reception parameters corresponding to the type of UE, The method includes receiving the PDCCH signaling in a control resource set CORESET to which a search space of the PDCCH signaling transmission corresponding to the UE type belongs, wherein the control resource sets CORESET to which the search spaces of the PDCCH signaling transmission corresponding to the different UE types belong are different.

[0179] The CORESET includes resources such as the frequency band that the PDCCH signaling in the search space occupies in the frequency domain and the number of OFDM symbols that it occupies in the time domain.

[0180] The base station may use different CORESETs to transmit PDCCH signaling corresponding to different UE types, respectively.

[0181] A UE may receive PDCCH signaling based on the CORESET corresponding to its own UE type.

[0182] Illustratively, CORESET#1 may be used for configuration of non-weighted UEs, and CORESET#0 may be used for configuration of weighted UE users.

[0183] In this way, random access response control information of different UE types can be carried in PDCCH signaling carried in different CORESETs, thereby realizing the use of different PDCCH signaling to carry random access response control information of different UE types.

[0184] In one embodiment, the receiving parameters include resource parameters; receiving PDCCH signaling using reception parameters corresponding to the type of UE, The method includes receiving the PDCCH signaling in a search space of the PDCCH signaling transmission corresponding to the UE type using the resource parameter corresponding to the UE type, wherein the search space of the PDCCH signaling transmission corresponding to the different UE types is different.

[0185] Here, PDCCH signaling corresponding to different UE types can be carried in different search spaces.

[0186] Here, the reception parameters may be resource parameters of a search space, and different types of UEs can respectively receive respective PDCCHs in search spaces corresponding to respective UE types based on the resource parameters of the respective search spaces.

[0187] The resource parameters may include frequency domain parameters and / or time domain parameters of the search space, where different frequency domain parameters may indicate different frequency domain resources and different time domain parameters may indicate different time domain resources.

[0188] A search space corresponding to the type of UE may be configured based on different UE types, for example, a search space corresponding to the transmission capabilities of different UE types may be configured.

[0189] In this way, PDCCH signaling corresponding to different UE types is carried in different search spaces, and the search space to which the PDCCH signaling belongs is matched to the corresponding UE type, thereby improving the flexibility of selecting PDCCH signaling to carry random access response control information. Furthermore, different types of PDCCH signaling transmission can respectively meet the transmission needs of different types of UE for random access response control information, reducing the coupling between the random access response control information of different types of UE, and reducing the data decoding error rate during decoding, thereby improving the success rate of UE receiving PDCCH signaling.

[0190] In one embodiment, the resource parameters include rule parameters of a resource determination rule; receiving PDCCH signaling using reception parameters corresponding to the type of UE, receiving the PDCCH signaling on candidate CCE resources determined according to a resource determination rule for the PDCCH signaling corresponding to a type of the UE; The resource decision rules corresponding to the different UE types are different.

[0191] Here, different types of UEs use different rule parameters in the shared CORESET to determine different CCE resources.

[0192] A CCE resource is the basic building block of a shared search space transmission resource that carries PDCCH signaling. A search space transmission that carries PDCCH signaling can have one or more CCE resources.

[0193] The CCE resource carrying the PDCCH signaling can be determined using the resource determination rule shown in Equation 1. Different resource determination rules can result in different CCE resources.

[0194] Here, in the shared CORESET for different types of UEs, different resource determination rules can be set for different UE types, thereby obtaining different candidate CCE resources, which can carry PDCCH signaling for different UE types.

[0195] In this way, by setting different resource determination rules for different UE types, the random access response control information of different UE types can be carried in PDCCH signaling carried by different CCE resources, thereby realizing the random access response control information of different UE types being carried using different PDCCH signaling transmissions.

[0196] In one embodiment, rule parameters of the resource determination rules corresponding to the different UE types are different; The rule parameters include an offset parameter and / or a randomization parameter.

[0197] Different offset and / or randomization parameters may be used for different UE types.

[0198] Here, the offset parameter may be 0. According to different offset parameters, different CCE resources can be obtained by the resource determination rule, thereby realizing different PDCCH signaling transmission resources; Alternatively, certain rule parameters of the resource determination rules may be randomized, with different randomization parameters resulting in different CCE resources.

[0199] For example, by setting an offset parameter X in addition to the resource determination rule shown in equation (1), the resource determination rule shown in equation (2) can be obtained, and the CCE resources obtained from the resource determination rule shown in equation (1) and the resource determination rule shown in equation (2) are different.

number

number

number

number

[0200] For a first type UE, X may not be equal to 0, and for a second type UE, X may be 0. In this way, the second type UE can transmit the second PDCCH signaling using a CCE resource in the related art. The first type UE can transmit the first PDCCH signaling using a CCE resource different from that of the second type UE.

[0201] For example, for a non-weighted UE configuration, X may be 0, and for a weighted UE configuration, X may not be equal to 0.

[0202] The offset parameter may be an offset that determines the specific parameter of the rule relative to an existing resource. For example, the offset parameter may be one type of expression.

number

[0203] Illustratively, for a non-weighted UE configuration:

number

number

[0204] In one embodiment, the resource parameters are: an aggregation level of PDCCH resources of the PDCCH signaling; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling; and / or and candidate retransmission locations of the PDCCH signaling.

[0205] The aggregation level may be the number of CCE resources that make up one PDCCH resource. The aggregation level may be 1, 2, 4, or 8. The aggregation level may characterize the number of CCE resources in a PDCCH resource, for example, an aggregation level of 8 means that the number of CCE resources in a PDCCH resource is 8.

[0206] The PDCCH resources of different aggregation levels are different, so that the PDCCH resources of different aggregation levels are used to transmit PDCCH signaling corresponding to different UE types, respectively, and thus different PDCCH signaling transmissions can be used to carry random access response control information of different types of UEs.

[0207] The search space includes multiple CCE resources, for example, 88 resources. PDCCH resources of the same aggregation level may exist at multiple positions in the search space. That is, there are multiple candidate transmission positions for PDCCH resources. Here, the first PDCCH signaling and the second PDCCH signaling can be transmitted using PDCCH resources at different candidate transmission positions. In this way, different PDCCH signaling transmissions can be used to carry random access response control information for different types of UEs.

[0208] 3, when there are n CCE resources in the search space, where n=88 is taken as an example, a PDCCH resource with an aggregation level of 8 may have two candidate positions in the search space, namely, candidate position 1 and candidate position 2. The PDCCH resource at candidate position 1 may be used to transmit a first PDCCH signaling, and the PDCCH resource at candidate position 2 may be used to transmit a second PDCCH signaling.

[0209] During the retransmission of the PDCCH signaling, the candidate retransmission positions used by the PDCCH signaling of different UE types may be different, thus realizing that different PDCCH signaling transmissions are used to carry the random access response control information of different UE types for the retransmission of the PDCCH signaling.

[0210] In one embodiment, the receiving parameters include a random access response window parameter; receiving PDCCH signaling using reception parameters corresponding to the type of UE, receiving the PDCCH signaling within the random access response window corresponding to the UE type; The random access response windows corresponding to the different UE types are different.

[0211] n time units after the user transmits the random access preamble, the UE starts monitoring PDCCH signaling in the type 1 PDCCH CSS. The period during which the UE monitors PDCCH signaling is called the random access response window. The random access response window can last for M time units, and if the user does not monitor PDCCH signaling within M time units, it is declared that the current random access has failed.

[0212] Here, for different types of UEs, the base station can send PDCCH signaling in different random access response windows, and the UE monitors PDCCH signaling in different random access response windows according to its own type.

[0213] In this way, by setting different random access response windows for different UE types, the random access response control information of different UE types can be carried in PDCCH signaling using the random access response window, thereby realizing the random access response control information of different UE types being carried using different PDCCH signaling transmissions.

[0214] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different.

[0215] n time units after the user transmits the random access preamble, the UE starts monitoring PDCCH signaling in the type 1 PDCCH CSS. The period during which the UE monitors PDCCH signaling is called the random access response window. The random access response window can last for M time units, and if the user does not monitor PDCCH signaling within M time units, it is declared that the current random access has failed.

[0216] Here, for different types of UEs, the values ​​of N and / or M are different to obtain different random access response windows.

[0217] In one embodiment, receiving PDCCH signaling using reception parameters corresponding to the UE type comprises: descrambling the PDCCH signaling using a descrambling sequence corresponding to the type of UE; The scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0218] To distinguish between PDCCH signaling corresponding to different UE types, the base station may scramble the PDCCH signaling corresponding to different UE types using different scrambling sequences, respectively.

[0219] Illustratively, a scrambling sequence corresponding to a first type of UE is used to scramble a first type of PDCCH signaling transmission, and a scrambling sequence corresponding to a second type of UE is used to scramble a second type of PDCCH signaling transmission.

[0220] For example, the first-type PDCCH signaling transmission and the second-type PDCCH signaling transmission may be scrambled using UE identifiers corresponding to the first-type UE and the second-type UE, respectively, where the UE identifier of the first-type UE is different from the UE identifier of the second-type UE, and the difference between the UE identifier of the first-type UE and the UE identifier of the second-type UE may be due to a different number of identifier bits and / or a different coding scheme.

[0221] The receiving parameter may be the descrambling sequence of the UE. The scrambling sequence and the descrambling sequence of the same type of UE are the same. After receiving the PDCCH signaling, the UE can descramble the PDCCH signaling using its corresponding descrambling sequence. If the descrambling is successful, the UE determines that the PDCCH signaling is the PDCCH signaling transmitted to itself.

[0222] In this way, different types of PDCCH signaling are carried in the same search space, improving the carrying capacity of the search space and improving communication efficiency.

[0223] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0224] Here, different RA-RNTIs can be assigned to different types of UEs, and the base station scrambles the PDCCH signaling using the RA-RNTI corresponding to the type of UE.

[0225] After receiving the PDCCH signaling, the UE side can descramble it using the RA-RNTI corresponding to its own type.

[0226] For example, the RA-RNTI of the related art can be used for a non-lightweight UE, and a different RA-RNTI can be newly defined for a lightweight UE according to a communication protocol, or a different RA-RNTI can be configured by a base station.

[0227] For example, the calculation method of RA-RNTI for different types of UEs can be defined according to the communication protocol. The RA-RNTI corresponding to the first type of UE can be calculated using the calculation method shown in equation (3) in the related art. t_id represents the subframe identifier (ID) number (range 0 to 9) of the start position for transmitting the random access preamble, and f_id represents the f_RA value (range 0 to 5) in the 4-element group.

[0228] For the second type UE, the calculation parameters are adjusted based on equation (3) to calculate the RA-RNTI of the second type UE so that the RA-RNTI of the first type UE is different from the RA-RNTI of the second type UE. For example, the constant 1 is adjusted based on equation (3) to obtain equation (4), and the RA-RNTI of the second type UE can be calculated using the calculation method shown in equation (4). RA-RNTI=2+t_id+10*f_id (4)

[0229] In one embodiment, the method comprises: receiving the random access response using a PDSCH resource scheduled by the random access response control information; The PDSCH resources corresponding to the different UE types are different.

[0230] The random access response control information in the PDCCH signaling may be used to schedule PDSCH resources for the random access response, where different PDSCH resource transmission random access responses may be scheduled for different UE types.

[0231] In this way, by using the random access response of the UE to transmit the PDSCH resource corresponding to the UE type, on the one hand, the PDSCH resource corresponding to the UE type is used to transmit the random access response, which meets the different transmission needs of different UE types and improves communication efficiency, and on the other hand, reduces the coupling between the random access responses of different types of UE and improves the flexibility of transmitting the random access response.

[0232] In one embodiment, the method comprises: In response to the UE being a first type UE, the base station receives resource indication information for the first type UE carried using PDCCH signaling for the second type UE, which information was transmitted in response to the bandwidth of the initial wideband portion BWP of the first type UE being equal to the bandwidth of CORESET#0.

[0233] The base station may configure PDCCH signaling to carry random access response control information for different UEs, for example, the base station may configure a second type of PDCCH signaling transmission to carry the random access response control information for different UEs.

[0234] In the search space configuration, if the BWPs of different types of UEs are the same, the different types of UEs can monitor the same search space, that is, the PDCCH signaling transmissions of the different types of UEs are the same.

[0235] For example, whether a non-lightweight UE and a lightweight UE use different PDCCH signaling transmissions may be configured via the base station or may be determined based on other conditions. For example, if the bandwidth of the initial BWP of the lightweight UE is equal to the bandwidth of CORESET#0, the lightweight UE may be configured to carry random access response control information using the same PDCCH signaling transmission as the non-lightweight UE.

[0236] In this way, the base station can flexibly configure the PDCCH used by the UE.

[0237] In one embodiment, the method comprises: The method further includes receiving configuration signaling, where the random access response control information is received using PDCCH signaling indicated by the configuration signaling.

[0238] The base station may configure PDCCH signaling transmissions carrying random access response control information for different types of UEs, for example, the base station may configure a first type of UE to carry random access response control information using a second type of PDCCH signaling transmission for a second type of UE.

[0239] In this way, the base station can flexibly configure the PDCCH used by the UE.

[0240] In one embodiment, as shown in FIG. 6, the method further includes the following step 502:

[0241] Step 502: Send a random access preamble carrying type indication information indicating the type of the UE to a base station.

[0242] When a UE enters a base station through a two-step random access method or a four-step random access method, the UE first sends a random access preamble to the base station, and the UE can make type indication information indicating its own type be carried in the random access preamble.

[0243] After receiving the random access preamble, the base station determines the type of the UE according to the type indication information, and then sends PDCCH signaling corresponding to the type.

[0244] Specific examples are provided below in conjunction with any of the above examples.

[0245] The core of the solution is to use independent random access response transmission processes for non-NR-lite UE and NR-lite UE.

[0246] Point 1: Separately transmit the RAR PDCCH for non-NR-lite UE and NR-lite UE. The following is a method for achieving separate transmission:

[0247] Method 1: Configure different CORESETs for NR-lite UE and non-NR-lite UE to carry corresponding type-1 PDCCH CSS.

[0248] Method 2: The non-NR-lite UE and the NR-lite UE use different preset rules or different parameters in the preset rules to obtain the corresponding CCE resources in the corresponding search spaces. For example, the non-NR-lite UE can still reuse the original rule, i.e., Equation (1), and add an offset of x to the original form for the NR-lite UE, i.e., as shown in Equation (2). Or, the NR-lite UE can still use the existing rule, i.e., Equation (1), and

number

[0249] Method 3: Configure different random access response windows for NR-lite UE and non-NR-lite UE. Different N values ​​and different X values ​​can be configured.

[0250] Method 4: Using different RA-RNTIs for different RAR PDCCHs.

[0251] Point 2: In addition to point 1, The degree of aggregation configured by the RAR PDCCH in NR-lite and / or the candidate transmission positions of the corresponding PDCCH may be different.

[0252] Point 3: The PDSCH that transmits the RAR is different for non-NR-lite UE and NR-lite UE.

[0253] Point 4: Whether to use different RAR transmission processes for non-NR-lite UE and NR-lite UE can be configured via the base station or determined based on other conditions.

[0254] For example, if the base station configures an NR-lite UE with an independent RAR transmission process, i.e., configures the transmission parameters for independently transmitting the RAR PDCCH in point 1, the NR-lite UE will use an independent RAR reception process. If the base station does not additionally configure parameters for the NR-lite UE, the user will use the same reception process as a non-NR-lite UE by default.

[0255] For example, if the bandwidth of the initial WP is equal to the bandwidth of CORESET#0, a default NR-lite UE can use the same RAR reception process as a non-NR-lite UE.

[0256] Point 4: The base station can distinguish between normal NR-lite UE and non-NR-lite UE by a specific random access preamble. The random access preamble used by NR-lite UE is different from that used by non-NR-lite UE on the same PRACH time-frequency resource.

[0257] The embodiment of the present invention further provides an information transmission device applied to a base station. Fig. 7 is a schematic diagram of an information transmission device 100 provided by the embodiment of the present invention. As shown in Fig. 7, the device 100 includes a first transmitting module 110, The first transmitting module 110 is configured to transmit, based on a type of UE, a physical downlink control channel (PDCCH) signaling corresponding to the type of UE, wherein the PDCCH signaling carries random access response control information for the UE, where different UE types correspond to different PDCCH signaling transmissions, and the random access response control information indicates scheduling information related to a random access response.

[0258] In one embodiment, the control resource sets CORESET to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different.

[0259] In one embodiment, the search spaces of the PDCCH signaling transmission corresponding to the different UE types are different.

[0260] In one embodiment, the first transmitting module 110 comprises: a first transmitting sub-module 111 configured to transmit the PDCCH signaling on a candidate CCE resource determined according to a resource determination rule; The resource decision rules corresponding to the different UE types are different.

[0261] In one embodiment, rule parameters of the resource determination rules corresponding to the different UE types are different; The rule parameters include an offset parameter and / or a randomization parameter.

[0262] In one embodiment, the aggregation levels of PDCCH resources of the PDCCH signaling corresponding to the different UE types are different; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling corresponding to the different UE types is different; and / or The candidate retransmission locations of the PDCCH signaling corresponding to the different UE types are different.

[0263] In one embodiment, the first transmitting module 110 comprises: a second transmitting submodule 112 configured to transmit the PDCCH signaling within a random access response window corresponding to a type of the UE; The random access response windows corresponding to the different UE types are different.

[0264] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different. In one embodiment, the scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0265] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0266] In one embodiment, the PDSCH resources corresponding to the different UE types scheduled by the random access response control information are different, and the PDSCH resources are used to transmit the random access response.

[0267] In one embodiment, the device comprises: The first type UE further includes a second transmitting module 120 configured to carry random access response control information of the first type UE using PDCCH signaling of the second type UE in response to the bandwidth of the initial wideband part BWP of the first type UE being equal to the bandwidth of CORESET#0.

[0268] In one embodiment, the device comprises: and a third transmitting module 130 configured to transmit configuration signaling to indicate whether the random access response control information of the first type UE is carried by PDCCH signaling of the first type UE or by PDCCH signaling of the second type UE.

[0269] In one embodiment, the device comprises: a first receiving module 140 configured to receive a random access preamble transmitted from the UE; and a first determining module 150 configured to determine the type of the UE based on type indication information carried in the random access preamble.

[0270] An embodiment of the present invention further provides an information transmission device applied to a UE. Figure 8 is a schematic configuration diagram of an information transmission device 200 provided by an embodiment of the present invention. As shown in Figure 8, the device 200 includes a second receiving module 210, The second receiving module 210 is configured to receive a physical downlink control channel (PDCCH) signaling using a receiving parameter corresponding to the type of the UE, the PDCCH signaling carrying the UE random access response control information, different UE types corresponding to different PDCCH signaling transmissions, and the random access response control information indicating scheduling information related to the random access response.

[0271] In one embodiment, the receiving parameters include a control resource set CORESET parameter; The second receiving module 210 includes: a first receiving sub-module 211 configured to receive the PDCCH signaling in a control resource set CORESET to which a search space of the PDCCH signaling transmission corresponding to the UE type belongs, wherein the control resource sets CORESET to which the search spaces of the PDCCH signaling transmission corresponding to the different UE types belong are different first receiving sub-modules 211.

[0272] In one embodiment, the receiving parameters include resource parameters; The second receiving module 210 includes: a second receiving sub-module 212 configured to receive the PDCCH signaling in a search space of the PDCCH signaling transmission corresponding to the type of UE using the resource parameter corresponding to the type of UE, where the search spaces of the PDCCH signaling transmission corresponding to the different types of UE are different second receiving sub-modules 212.

[0273] In one embodiment, the resource parameters include rule parameters of a resource determination rule; The second receiving module 210 includes: a third receiving sub-module 213 configured to receive the PDCCH signaling on a candidate CCE resource determined according to a resource determination rule for the PDCCH signaling corresponding to a type of the UE; The resource decision rules corresponding to the different UE types are different.

[0274] In one embodiment, rule parameters of the resource determination rules corresponding to the different UE types are different; The rule parameters include an offset parameter and / or a randomization parameter.

[0275] In one embodiment, the resource parameters are: an aggregation level of PDCCH resources of the PDCCH signaling; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling; and / or candidate retransmission locations of the PDCCH signaling.

[0276] In one embodiment, the receiving parameters include a random access response window parameter; The second receiving module 210 includes: a fourth receiving sub-module 214 configured to receive the PDCCH signaling within the random access response window corresponding to the type of the UE; The random access response windows corresponding to the different UE types are different.

[0277] In one embodiment, the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or The random access response window duration lengths corresponding to the different UE types are different.

[0278] In one embodiment, the second receiving module 210 comprises: a fifth receiving sub-module 215 configured to descramble the PDCCH signaling using a descrambling sequence corresponding to the type of the UE; The scrambling sequences of the PDCCH signaling corresponding to the different UE types are different.

[0279] In one embodiment, the scrambling sequence is a Random Access Radio Network Temporary Identifier RA-RNTI, and the RA-RNTIs of the UEs of different types are different.

[0280] In one embodiment, the device 200 comprises: a third receiving module 220 configured to receive the random access response using a PDSCH resource scheduled by the random access response control information; The PDSCH resources corresponding to the different UE types are different.

[0281] In one embodiment, the device 200 comprises: The base station further includes a fourth receiving module 230 configured to respond that the UE is a first type UE, the fourth receiving module 230 receiving resource indication information for the first type UE carried using PDCCH signaling of a second type UE, the fourth receiving module 230 being configured to respond that the bandwidth of the initial wideband part BWP of the first type UE is equal to the bandwidth of CORESET#0.

[0282] In one embodiment, the device 200 comprises: The fifth receiving module 240 is configured to receive configuration signaling and receive the random access response control information using PDCCH signaling indicated by the configuration signaling.

[0283] In one embodiment, the device 200 comprises: The UE further includes a second sending module 250 configured to send a random access preamble carrying type indication information indicating the type of the UE to a base station.

[0284] In an exemplary embodiment, the first transmitting module 110, the second transmitting module 120, the third transmitting module 130, the first receiving module 140, the first determining module 150, the second receiving module 210, the third receiving module 220, the fourth receiving module 230, the fifth receiving module 240, and the second transmitting module 250, etc., may be controlled by one or more central processing units (CPUs), graphics processing units (GPUs), baseband processors (BPs), application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components, or by one or more radio frequency (RF) The method can be implemented by combining a plurality of antennas (frequency) and a plurality of antennas.

[0285] 9 is a block diagram of an information transmission device 3000 shown by an illustrative example. For example, the device 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0286] Referring to FIG. 9, the device 3000 may include one or more components: a processing component 3002, a memory 3004, a power component 3006, a multimedia component 3008, an audio component 3010, an input / output (I / O) interface 3012, a sensor component 3014, and a communication component 3016.

[0287] The processing component 3002 typically controls the overall operation of the device 3000, such as operations related to display, phone calls, data communication, camera operation, and recording operations. The processing component 3002 may include one or more processors 3020 for executing instructions to complete all or some of the steps of the above-described methods. The processing component 3002 may also include one or more modules to facilitate processing interactions with other components. For example, the processing component 3002 may include a multimedia module to facilitate interaction between the processing component 3002 and the multimedia component 3008.

[0288] Memory 3004 is configured to store various types of data to support operation on device 3000. Examples of this data include instructions for any application programs or methods for operating on device 3000, contact data, phone book data, messages, images, videos, etc. Memory 3004 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0289] The power supply component 3006 provides power to various components of the device 3000. The power supply component 3006 can include a power management system, one or more power sources, and other components associated with the generation, management, and distribution of power for the device 3000.

[0290] The multimedia component 3008 includes a screen that provides an output interface between the device 3000 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel may include one or more touch sensors to detect touch, slide, and touch panel gestures. The touch sensors may detect not only the boundaries of a touch or slide operation but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 3008 includes a front camera and / or a rear camera. When the device 3000 is in an operational mode, such as a photo mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or may have a focal length and optical zoom capability.

[0291] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes a microphone (MIC) configured to receive external audio signals when the device 3000 is in an operation mode such as a call mode, a record mode, and a voice recognition mode. The received audio signals may be further stored in the memory 3004 or transmitted via the communication component 3016. In some embodiments, the audio component 3010 further includes a speaker for outputting audio signals.

[0292] The I / O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0293] The sensor component 3014 includes one or more sensors to provide various aspects of the device 3000 with status assessment. For example, the sensor component 3014 can detect the on / off state of the device 3000, the relative positioning of components, such as the display and keypad of the device 3000, and the positional changes of the device 3000 or a component of the device 3000, the presence or absence of user contact with the device 3000, the orientation or acceleration / deceleration of the device 3000, and temperature changes of the device 3000. The sensor component 3014 can also include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 3014 can further include an optical sensor, such as a CMOS or CCD image sensor used for imaging applications. In some embodiments, the sensor component 3014 can further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0294] The communication component 3016 is configured to facilitate wired or wireless communication between the device 3000 and other devices. The device 3000 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 3016 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 3016 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0295] In an exemplary embodiment, the apparatus 3000 may be implemented by an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, one or more applications, to perform the above methods.

[0296] An exemplary embodiment further provides a non-transitory computer-readable storage medium containing instructions, such as a memory 3004 containing instructions, which may be executed by the processor 3020 of the apparatus 3000 to complete the method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

[0297] Those skilled in the art will easily conceive of other implementations of the embodiments of the present invention after studying the specification and practicing the invention disclosed herein. This application is intended to cover any modifications, uses, or adaptations of the present invention, which follow the general principles of the embodiments of the present invention and include common general knowledge or commonly used technical means in the technical field that are not disclosed in the embodiments of the present disclosure. Furthermore, those skilled in the art may substitute or combine steps or modules of each embodiment of the present disclosure without departing from the principles of the present disclosure, and such substitutions and combinations should also be considered within the scope of protection of the present disclosure. The specification and examples are to be considered merely illustrative, and the scope and spirit of protection of the embodiments of the present invention are indicated by the scope of the following claims.

[0298] It should be noted that the embodiments of the present invention are not limited to the exact structures described above and illustrated in the drawings, and various modifications and variations can be made without departing from the scope thereof. The scope of the embodiments of the present application is limited only by the scope of the appended claims.

Claims

1. 1. An information transmission method, applied to a base station, said method comprising: transmitting physical downlink control channel (PDCCH) signaling corresponding to a type of user equipment (UE) based on the type of the UE, wherein the PDCCH signaling carries random access response control information for the UE, different UE types correspond to different PDCCH signaling transmissions, the random access response control information indicates scheduling information related to a random access response, search spaces of the PDCCH signaling transmissions corresponding to the different UE types are different, and control resource sets (CORESETs) to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different; The aggregation levels of PDCCH resources of the PDCCH signaling corresponding to the different UE types are different; and / or The number of candidate transmission positions of PDCCH resources for PDCCH signaling corresponding to the different UE types is different; and / or The candidate retransmission locations of the PDCCH signaling corresponding to the different UE types are different.

1. An information transmission method comprising:

2. The step of transmitting PDCCH signaling corresponding to the type of UE includes: transmitting the PDCCH signaling within a random access response window corresponding to a type of the UE; the random access response windows corresponding to the different UE types are different; 2. The method of claim 1 .

3. the time intervals between the random access response window and the random access preamble corresponding to the different UE types are different; and / or the duration lengths of the random access response windows corresponding to the different UE types are different; 3. The method of claim 2.

4. the scrambling sequences of the PDCCH signaling corresponding to the different UE types are different; 2. The method of claim 1 .

5. the scrambling sequence is a Random Access Radio Network Temporary Identifier (RA-RNTI), and the RA-RNTIs of the UEs of different types are different; 5. The method of claim 4.

6. PDSCH resources corresponding to the different UE types scheduled by the random access response control information are different, and the PDSCH resources are used to transmit the random access response. The method according to any one of claims 1 to 5.

7. The method comprises: receiving a random access preamble sent from the UE; determining a type of the UE based on type indication information carried in the random access preamble; The method according to any one of claims 1 to 5.

8. 1. A method for transmitting information, adapted for a user equipment (UE), said method comprising: receiving a physical downlink control channel (PDCCH) signaling using reception parameters corresponding to the UE type, wherein the PDCCH signaling carries random access response control information for the UE, different UE types correspond to different PDCCH signaling transmissions, the random access response control information indicates scheduling information related to a random access response, search spaces of the PDCCH signaling transmissions corresponding to the different UE types are different, and control resource sets (CORESETs) to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different; the receiving parameters include resource parameters; receiving PDCCH signaling using reception parameters corresponding to the type of UE, receiving the PDCCH signaling in a search space of the PDCCH signaling transmission corresponding to the type of the UE using the resource parameter corresponding to the type of the UE; The resource parameters are: an aggregation level of PDCCH resources for the PDCCH signaling; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling; and / or candidate retransmission positions of the PDCCH signaling; including one of the following:

1. An information transmission method comprising:

9. receiving the random access response using a PDSCH resource scheduled by the random access response control information; the PDSCH resources corresponding to the different UE types are different; 9. The method of claim 8.

10. The method comprises: and further comprising: transmitting a random access preamble to a base station, the random access preamble carrying type indication information indicating the type of the UE.

9. The method of claim 8.

11. An information transmission device, applied to a base station, the device including: a first transmitting module; The first transmission module is configured to transmit, based on a type of a user equipment (UE), a physical downlink control channel (PDCCH) signaling corresponding to the type of the UE, wherein the PDCCH signaling carries random access response control information for the UE, different UE types correspond to different PDCCH signaling transmissions, the random access response control information indicates scheduling information related to a random access response, search spaces of the PDCCH signaling transmissions corresponding to the different UE types are different, and control resource sets (CORESETs) to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different; The aggregation levels of PDCCH resources of the PDCCH signaling corresponding to the different UE types are different; and / or The number of candidate transmission positions of PDCCH resources for PDCCH signaling corresponding to the different UE types is different; and / or The candidate retransmission locations of the PDCCH signaling corresponding to the different UE types are different. An information transmission device characterized by:

12. An information transmission device, applied to a user equipment (UE), comprising: a second receiving module; the second receiving module is configured to receive a physical downlink control channel (PDCCH) signaling using a receiving parameter corresponding to a type of the UE, the PDCCH signaling carries random access response control information for the UE, different UE types correspond to different PDCCH signaling transmissions, the random access response control information indicates scheduling information related to a random access response, search spaces of the PDCCH signaling transmissions corresponding to the different UE types are different, and control resource sets (CORESETs) to which the search spaces of the PDCCH signaling transmissions corresponding to the different UE types belong are different; the receiving parameters include resource parameters; Receiving PDCCH signaling using reception parameters corresponding to the type of UE includes: receiving the PDCCH signaling in a search space of the PDCCH signaling transmission corresponding to the type of the UE using the resource parameter corresponding to the type of the UE; The resource parameters are: an aggregation level of PDCCH resources for the PDCCH signaling; and / or the number of candidate transmission positions of the PDCCH resource of the PDCCH signaling; and / or candidate retransmission positions of the PDCCH signaling; including one of the following: An information transmission device characterized by:

13. A communication device, a processor, a transceiver, a memory, and a program stored in the memory and executable by the processor, wherein the processor performs the steps of the information transmission method according to any one of claims 1 to 7 when it executes the executable program; A communication device characterized by:

14. A communication device, a processor, a transceiver, a memory, and a program stored in the memory and executable by the processor, wherein the processor performs the steps of the information transmission method according to any one of claims 8 to 10 when it executes the executable program; A communication device characterized by:

15. A storage medium, an executable program is stored, and when the executable program is executed by a processor, the steps of the information transmission method according to any one of claims 1 to 7 are realized; A storage medium characterized by:

16. A storage medium, an executable program is stored, and when the executable program is executed by a processor, the steps of the information transmission method according to any one of claims 8 to 10 are realized; A storage medium characterized by:

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