CN116803141A

CN116803141A - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN116803141A
Application number: CN202180090566.6A
Authority: CN
Inventors: 贺传峰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2023-09-22
Also published as: WO2022246588A1

Abstract

A method of wireless communication, a terminal device and a network device, the method comprising: the terminal equipment determines a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal equipment; and receiving first information sent by the network equipment in the random access process according to the first RNTI. Because different types of terminal equipment correspond to different RAPID, the network equipment can be guaranteed to bear the first information of different types of terminal equipment through different first RNTI, so that the network equipment can optimize the transmission of different types of terminal equipment in the second step in the random access process, for example, the transmission mode of a downlink channel is set according to the type of the terminal, such as the size of a scheduling resource, a modulation coding scheme and the like, and the downlink spectrum efficiency is improved.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the field of communication, in particular to a wireless communication method, terminal equipment and network equipment.

Background

In some scenarios, reduced capability (Reduced Capbility, redCap) terminals are introduced for scenarios with lower performance requirements for latency, reliability, bandwidth, coverage, throughput, etc., the capabilities of the RedCap terminals are reduced relative to non-RedCap terminals, e.g., fewer receive antennas, less supported bandwidth, etc.

In the random access procedure, the network device transmits a downlink message, for example, message 2 (Msg 2), message 4 (Msg 4), message B (MsgB), or the like, to the terminal device through the common channel. In a scenario where a RedCap terminal and a non-RedCap terminal coexist, how a network device performs transmission optimization on different types of terminals respectively so as to improve downlink spectrum efficiency is a problem that needs to be solved.

Disclosure of Invention

The application provides a wireless communication method, terminal equipment and network equipment, which are beneficial to improving the downlink spectrum efficiency.

In a first aspect, a method of wireless communication is provided, comprising: the terminal equipment determines a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal equipment; and receiving first information sent by the network equipment in the random access process according to the first RNTI.

In a second aspect, there is provided a method of wireless communication, comprising: the terminal equipment determines a first Radio Network Temporary Identifier (RNTI) according to first identification information, wherein the first identification information is associated with the type of the terminal equipment;

and receiving first information sent by the network equipment in the random access process according to the first RNTI.

In a third aspect, a method of wireless communication is provided, comprising: and the terminal equipment uses a first resource to receive first information sent by the network equipment in the random access process, wherein the first resource is a resource corresponding to the type of the terminal equipment.

In a fourth aspect, a method of wireless communication is provided, comprising: the network equipment determines a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal equipment; and sending first information in the random access process to the terminal equipment according to the first RNTI.

In a fifth aspect, a method of wireless communication is provided, comprising: the network equipment determines a first wireless network temporary identifier RNTI according to first identification information, wherein the first identification information is associated with the type of the terminal equipment; and sending first information of a random access process to the terminal equipment according to the first RNTI.

In a sixth aspect, a method of wireless communication is provided, comprising: and the network equipment uses the first resource to send first information in the random access process to the terminal equipment, wherein the first resource is a resource corresponding to the type of the terminal equipment.

A seventh aspect provides a terminal device for performing the method of any one of the first to third aspects or implementations thereof.

Specifically, the terminal device comprises functional modules for performing the method in any of the above-mentioned first to third aspects or implementations thereof.

An eighth aspect provides a network device for performing the method of any one of the fourth to sixth aspects or implementations thereof.

In particular, the network device comprises functional modules for performing the method in any of the above fourth to sixth aspects or implementations thereof.

In a ninth aspect, a terminal device is provided, comprising a processor and a memory. The memory is for storing a computer program, and the processor is for calling and running the computer program stored in the memory for performing the method of any one of the above first to third aspects or implementations thereof.

In a tenth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in any one of the fourth aspect to the sixth aspect or each implementation manner thereof.

An eleventh aspect provides a chip for implementing the method in any one of the first to sixth aspects or each implementation thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method as in any one of the above first to sixth aspects or implementations thereof.

In a twelfth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the method of any one of the above-described first to sixth aspects or implementations thereof.

In a thirteenth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the above-mentioned first to sixth aspects or implementations thereof.

In a fourteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-described first to sixth aspects or implementations thereof.

According to the technical scheme, the first RNTI corresponding to the first information is generated according to the RAPID of the terminal equipment, and meanwhile, as different types of terminal equipment correspond to different RAPID, the network equipment can be guaranteed to bear the first information of different types of terminal equipment through different first RNTI, so that the network equipment can carry out transmission optimization on the terminal equipment in the second step of the random access process, for example, a transmission mode of a downlink channel, such as scheduling resource size, modulation coding scheme and the like, is set according to the type of the terminal, and the downlink spectrum efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application.

Fig. 2 is a schematic flow chart of a random access procedure according to an embodiment of the application.

Fig. 3 is a schematic flow chart of a random access procedure according to another embodiment of the application.

Fig. 4 is a schematic flow chart of a method of wireless communication provided by an embodiment of the present application.

Fig. 5 is a schematic flow chart of another method of wireless communication provided by an embodiment of the present application.

Fig. 6 is a schematic flow chart of yet another method of wireless communication provided by an embodiment of the present application.

Fig. 7 is a schematic diagram of configuring different CORESETs for reduced capability terminals and non-reduced capability terminals.

Fig. 8 is a schematic diagram of configuring different downlink BWP for a reduced-capability terminal and a non-reduced-capability terminal.

Fig. 9 is a schematic block diagram of a terminal device provided in an embodiment of the present application.

Fig. 10 is a schematic block diagram of another terminal device according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of still another terminal device provided in an embodiment of the present application.

Fig. 12 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of another terminal device according to an embodiment of the present application.

Fig. 14 is a schematic block diagram of still another terminal device provided in an embodiment of the present application.

Fig. 15 is a schematic block diagram of a communication device provided in another embodiment of the present application.

Fig. 16 is a schematic block diagram of a chip provided in an embodiment of the present application.

Fig. 17 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art to which the application pertains without inventive faculty, are intended to fall within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), fifth Generation communication (5 th-Generation, 5G) system, or other communication system, etc.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, as the communication technology advances, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, or internet of vehicles (Vehicle to everything, V2X) communication, etc., to which the embodiments of the present application can also be applied.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a Stand Alone (SA) fabric scenario.

Optionally, the communication system in the embodiment of the present application may be applied to unlicensed spectrum, where unlicensed spectrum may also be considered as shared spectrum; alternatively, the communication system in the embodiment of the present application may also be applied to licensed spectrum, where licensed spectrum may also be considered as non-shared spectrum.

Embodiments of the present application are described in connection with a network device and a terminal device, where the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, a User Equipment, or the like.

The terminal device may be a STATION (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) STATION, a personal digital assistant (Personal Digital Assistant, PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal device in a next generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In the embodiment of the application, the terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), and the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In the embodiment of the present application, the network device may be a device for communicating with a mobile device, where the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device (gNB) in NR network, a network device in future evolved PLMN network, or a network device in NTN network, etc.

By way of example, and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In the embodiment of the present application, a network device may provide services for a cell, where a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (e.g., a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

An exemplary communication system 100 to which embodiments of the present application may be applied is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

Fig. 1 illustrates one network device and two terminal devices by way of example, and the communication system 100 may alternatively include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device, as embodiments of the application are not limited in this regard.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited by the embodiment of the present application.

It should be understood that a device having a communication function in a network/system according to an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, etc.

In the embodiment of the present application, the "predefining" may be implemented by pre-storing corresponding codes, tables or other manners that may be used to indicate relevant information in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation manner thereof. Such as predefined may refer to what is defined in the protocol.

In the embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited in the present application.

In an NR system, two random access modes can be supported: a contention-based random access scheme and a non-contention-based random access scheme. As shown in fig. 2, the four-step random access includes the steps of:

step 1, a terminal device sends a physical random access channel (Physical Random Access Channel, PRACH) to a network device, wherein the PRACH includes a random access Preamble (Preamble, i.e. Msg 1).

The random access preamble may also be referred to as a preamble, a random access preamble sequence, a preamble sequence, or the like.

Specifically, the terminal device may select a PRACH resource on which to send a Preamble. The network device transmits random access related parameters, such as a reference signal received power (Reference Signal Receiving Power, RSRP) threshold (RSRP-threshold SSB) for synchronization signal block (Synchronization Signal Block, SSB) selection, to the terminal device via a broadcast system information block (System Information Block, SIB) 1. Each SSB corresponds to a set of preambles and random access opportunity (RO) resources, and the terminal device may select a Preamble for random access among the set of preambles corresponding to the selected SSB. The network device may estimate the transmission delay between the network device and the terminal device according to the Preamble and calibrate the uplink timing (timing) accordingly, and may generally determine the size of the resources required for the terminal device to transmit Msg 3.

Step 2, the network device sends a random access response (Random Access Response, RAR, i.e. Msg 2) to the terminal device. The RAR is used to inform the terminal device that the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resource that can be used by the message 3 (i.e. Msg 3) is being sent, allocate a temporary radio network temporary identifier (Radio Network Temporary Identity, RNTI) for the terminal device, provide a timing advance command (Timing Advance Command, TAC) for the terminal device, and so on.

Specifically, after the terminal device sends the Preamble to the network device, a random access response window (RA-response window) may be opened, and a corresponding physical downlink control channel (Physical Downlink Control Channel, PDCCH) is detected in the RA-response window according to a random access radio network temporary identifier (Random Access Radio Network Temporary Identifier, RA-RNTI). If the terminal device detects the PDCCH scrambled by the RA-RNTI, it can obtain the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled by the PDCCH. Wherein, the PDSCH includes a RAR corresponding to the Preamble.

The RA-RNTI is calculated from the time-frequency location of the PRACH transmitting the Preamble, so if a plurality of terminal devices transmit the Preamble on the same RO, the corresponding RAR is multiplexed in the same RAR medium access control protocol data unit (Media Access Control Protocol Data Unit, MAC PDU). If the terminal successfully receives the PDCCH scrambled by the RA-RNTI corresponding to the RO resource for transmitting the Preamble, and the RAR includes a random access sequence identifier (Random Access Preamble Identifier, RAPID) carried by a MAC sub-PDU (sub-PDU) corresponding to the index (Preamble index) of the random access Preamble selected in the Msg 1, the RAR is successfully received, and the terminal can decode to obtain the TAC, the uplink Grant resource (UL Grant) and the temporary cell RNTI (Temporary Cell Radio Network Temporary Identity, TC-RNTI), thereby transmitting the Msg 3.

If the RA-RNTI scrambled PDCCH corresponding to the RO resource transmitting the Preamble is not received or the RA-RNTI scrambled PDCCH is received during the RA-response window operation, but the MAC subPDU corresponding to the Preamble index is not included in the RAR, the RAR reception is considered to be failed when the above two cases occur.

And 3, the terminal equipment sends Msg 3.

For example, the terminal device may send the Msg3 on PUSCH resources specified in the RAR, where the Msg3 includes temporary identification information of the terminal device.

For example, for the initial access scenario, msg3 may include an RRC connection request message generated by the RRC layer (RRC Setup Request). Msg3 may carry, for example, a 5G-service temporary mobile subscriber identity (Serving-Temporary Mobile Subscriber Identity, S-TMSI) or a random number, etc. of the terminal device.

For another example, for an RRC connection reestablishment scenario, msg3 may include an RRC connection reestablishment request message generated by the RRC layer (RRC Reestabilshment Request). Msg3 carries, for example, a cell radio network temporary identity (Cell Radio Network Temporary Identifier, C-RNTI) or the like.

For another example, for a handover scenario, msg3 may include an RRC layer generated RRC handover confirm message (RRC Handover Confirm) that carries the C-RNTI of the terminal device. Msg3 carries information such as buffer status reports (Buffer Status Report, BSR). For other trigger events, such as the scenario of up/down data arrival, msg3 may include at least the C-RNTI of the terminal device.

Step 4, the network device sends a conflict resolution message (contention resolution), i.e. Msg4, to the terminal device.

The network device sends Msg4 to the terminal device, and the terminal device receives Msg4 correctly to complete contention resolution (Contention Resolution). For example, during RRC connection establishment, an RRC connection establishment message may be carried in Msg4.

Since the terminal device in step 3 can carry the unique identifier of the terminal device in Msg3, the network device will carry the unique identifier of the terminal device in Msg4 in the contention resolution mechanism to designate the terminal device that wins the contention. While other terminal devices that are not winning in contention resolution will re-initiate random access.

As shown in fig. 3, the two-step random access may include the steps of:

step 1, a terminal device sends MsgA to a network, wherein the MsgA is used for transmitting Msg1+Msg3 of four-step random access;

and 2, the network sends MsgB to the terminal equipment, wherein the MsgB is used for transmitting Msg2+Msg4 of four-step random access.

After the terminal equipment sends the MsgA, a receiving window of the MsgB is opened, and the MsgB is monitored and received in the receiving window.

In the four-step random access procedure, after the terminal device sends Msg1, the terminal device will monitor the PDCCH in the RAR time window to receive the corresponding RAR. Wherein the cyclic redundancy check (Cyclical Redundancy Check, CRC) of the PDCCH is scrambled by the RA-RNTI. If the RAR replied by the network equipment is not received in the RAR time window, the random access procedure is considered to be failed. When the terminal device successfully receives an RAR and the index (preamble index) of the random access preamble in the RAR is the same as the preamble index sent by the UE, the UE considers that the RAR is successfully received, and can stop monitoring the RAR.

The RAR may include response information of the network device to a plurality of terminal devices sending the preamble, and the response information of the network device to each terminal device may include information such as RAPID, resource allocation information of Msg3, TA adjustment information, TC-RNTI adopted by the terminal device. The terminal device needs to determine whether the received RAR is addressed to itself or not through the RA-RNTI, and thus specifies the generation method of the RA-RNTI as follows:

RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id

wherein s_id is index of the first OFDM symbol occupied by PRACH channel resource, s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH channel resources, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH channel resource in frequency domain, f_id is 0-8; ul_carrier_id is an Uplink carrier (UL carrier) where PRACH channel resources are located, 0 represents a Normal Uplink (NUL) carrier, and 1 represents a secondary Uplink (Supplementary Uplink, SUL) carrier.

The NR system is designed mainly for supporting enhanced mobile ultra wideband (Enhance Mobile Broadband, eMBB) services. The main technology of NR systems is to meet the requirements of high rate, high spectral efficiency, and large bandwidth. In practical applications, besides the eMBB service, there are a plurality of different service types, such as sensor network, video monitoring, wearable service, etc., which have different requirements in terms of rate, bandwidth, power consumption, cost, etc. from the eMBB service. The capabilities of the terminal devices supporting these services are reduced compared to terminal devices supporting the eMBB service, such as reduced supported bandwidth, relaxed processing time, reduced antenna count, relaxed maximum modulation order, etc. Such terminals may be referred to as reduced capability (Reduced Capability, redCap) terminals. Therefore, there is a need to optimize the NR system for these services and reduced capability terminals supporting these services.

The RedCap terminal cannot make the network device know the terminal type or capability of itself in the initial access stage, and compared with the non-RedCap terminal, the RedCap terminal has reduced receiving performance of the downlink channel due to reduced number of receiving antennas. In the random access process, the network device sends Msg2 and Msg4 to the terminal device through the common channel, and as the type of the terminal is not known, a conservative approach is that the network device sets a transmission mode of the downlink channel according to the number of receiving antennas of the RedCap terminal, such as scheduling resource size, modulation coding scheme, and the like, so that the downlink spectrum efficiency is reduced. One solution is that during random access, the RedCap terminal reports its own type or capability, so that the network device can adopt a transmission mode of a corresponding downlink channel. For example, the RedCap terminal may indicate the type or capability of the terminal through Msg1, so that the network device may perform corresponding optimization for the RedCap terminal device when transmitting Msg 2. For example, the type or capability of the terminal is indicated by Msg1, including distinguishing between the RedCap terminal and the non-RedCap terminal by at least one of preamble index, initial upstream bandwidth Part (BWP), and PRACH resources. In general, the network device can recognize the access of the RedCap terminal earlier, and can optimize the transmission of the RedCap terminal earlier, so as to improve the transmission efficiency.

When the RedCap terminal and the non-RedCap terminal can use the shared RO, the time domain and the frequency domain of the PRACH resource where the Preamble is transmitted by the terminals are the same. The RA-RNTI determined according to the above-described calculation method of the RA-RNTI is identical, and thus, it is impossible to distinguish even if the RedCap terminal and the non-RedCap terminal employ different preambles. That is, when the network device transmits the RAR, for the same RA-RNTI, the PDCCH transmitted by the scheduling RAR and the PDSCH carrying the RAR may simultaneously carry response information of the RedCap terminal and the non-RedCap terminal, and in this case, the network device cannot optimize transmission according to the terminal type.

In view of this, the present application provides a technical solution, by designing to generate RA-RNTI according to the identification information related to the type or capability of the terminal device, it can be ensured that the network device transmits response information corresponding to different types of terminals through different RA-RNTIs, so that transmission optimization can be performed on different types of terminals in the second step in the random access process, and downlink spectrum efficiency is improved.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments. The above related technologies can be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

Fig. 4 is a schematic interaction diagram of a method 200 of wireless communication according to an embodiment of the application, as shown in fig. 4, the method 200 comprising at least part of the following:

s201, the network equipment determines a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal equipment;

correspondingly, S211, the terminal device determines the first RNTI according to the RAPID of the terminal device.

Further, in S220, the network device sends first information scrambled by the first RNTI, where the first information is downlink information in the random access procedure.

Correspondingly, the terminal equipment receives first information sent by the network equipment according to the first RNTI.

In some embodiments, the terminal device may perform S211 after transmitting Msg1, and the network device performs S201 after receiving Msg1, but embodiments of the present application do not limit the execution sequence of S201 and S211.

In some embodiments, the RAPID is an Index, or Preamble Index, of a random access Preamble.

In some embodiments of the application, the network device has knowledge of the type or capabilities of the terminal device before the network device sends the first information.

For example, the terminal device may indicate the type or capability of the terminal device to the network device through a first message, where the first message is a first message in a random access procedure.

As an example, the terminal device may indicate the type or capability of the terminal device through at least one of a random access preamble, an initial uplink BWP transmitting the first message, and PRACH resources transmitting the first message.

In some embodiments, the first information may be downlink information in a four-step random access procedure, for example, msg2, or downlink information in a two-step random access procedure, for example, msgB.

In some embodiments, the first information is scrambled by a first RNTI. Alternatively, the first information includes information scrambled by the first RNTI, for example, CRC of the first information is scrambled by the first RNTI.

In some embodiments, the first RNTI is used to scramble a PDCCH carrying an RAR in a four-step random access procedure. For example, the first RNTI is used to scramble a CRC of a PDCCH carrying the RAR. In this case, the first RNTI may be RA-RNTI. The first information may include a PDCCH for scheduling the RAR and/or a PDSCH for carrying the RAR.

In some embodiments, the terminal device may detect a PDCCH sent by the network device according to the RA-RNTI, and if the terminal device detects a PDCCH scrambled by the RA-RNTI, may receive a PDSCH scheduled by the PDCCH according to the PDCCH, so as to obtain an RAR corresponding to a Preamble included in the PDSCH.

In other embodiments, the first RNTI is used to scramble a PDCCH carrying an RAR in a two-step random access procedure. More specifically, the first RNTI is used to scramble a CRC of a PDCCH carrying an RAR. In this case, the first RNTI is MSGB-RNTI. The first information includes an MsgB, wherein the MsgB includes a PDCCH for scheduling an RAR and a PDSCH for carrying the RAR.

In some embodiments, the RAPID of the terminal device may be configured according to the type or capabilities of the terminal device.

For example, the network device may configure a corresponding Preamble set according to the type or capability of the terminal device, i.e., terminals of different types or capabilities may use preambles in different Preamble sets to transmit PRACH.

In some embodiments, the types of the terminal device may include two types, such as a reduced capability terminal and a non-reduced capability terminal, or may also include more types, such as a reduced capability terminal, a normal terminal, an enhanced capability terminal, and the like, where the capability of the enhanced capability terminal is higher than that of the normal terminal, and the capability of the normal terminal is higher than that of the reduced capability terminal, or may also be divided into multiple types, for example, the reduced capability terminal is divided into multiple types according to the number of receiving antennas of the terminal device. Hereinafter, two types of terminals (i.e., reduced capability terminals and non-reduced capability terminals) are described as examples, but the present application is not limited thereto.

In some embodiments, the types of the terminal devices may be classified according to capabilities of the terminal devices, which may include, for example, but not limited to, at least one of the following: the supported bandwidth size, data processing capacity, maximum modulation order, number of receive antennas, receive antenna gain, and coverage capability level.

In some embodiments, the network device may configure a first Preamble set for the reduced capability terminal and a second Preamble set for the non-reduced capability terminal, where the preambles included in the first Preamble set and the second Preamble set do not overlap.

For example, the terminal device receives first configuration information sent by the network device, where the first configuration information is used to configure a first Preamble set, where the first Preamble set includes at least one RAPID, so the first Preamble set is also referred to as a first RAPID set, and the first Preamble set corresponds to a type to which the terminal device belongs, for example, a reduced capability terminal type.

In some embodiments, the reduced capability terminal and the non-reduced capability terminal share RO resources. I.e., the reduced capability terminal and the non-reduced capability terminal may transmit the Preamble using the same RO resource.

In some embodiments, the terminal device may determine the first RNTI according to information of PRACH resources where the Preamble is located and RAPID of the terminal device. Since different types of terminals are configured with different RAPID, even though the reduced capability terminal and the non-reduced capability terminal share RO resources, by calculating the first RNTI according to the information of PRACH resources and RAPID, different types of terminals can be distinguished by the first RNTI.

Therefore, in the embodiment of the present application, the network device may acquire the RAPID of the terminal device and the PRACH resource used by the terminal device to send the Preamble, and the terminal device may also acquire the RAPID of the terminal device and the PRACH resource used by the terminal device to send the Preamble, so that the network device may calculate the first RNTI according to the information of the PRACH resource used by the terminal device to send the Preamble and the RAPID corresponding to the terminal device to send the Preamble, further perform the transmission of the first information according to the first RNTI, and correspondingly, the terminal device may also calculate the first RNTI according to the information of the PRACH resource used by the terminal device to send the Preamble and the RAPID corresponding to the terminal device to send the Preamble, and further perform the reception of the first information according to the first RNTI. Because the first RNTIs corresponding to different types of terminals are different, the network device can distinguish the first information of different types of terminals through the different first RNTIs, so that the network device can adopt corresponding transmission modes of downlink channels, such as modulation and coding schemes, scheduling resource sizes and the like, according to different types of terminals.

In some embodiments, the information of the PRACH resource in which the Preamble is located includes at least one of the following:

an index (s_id) of a first Orthogonal Frequency Division Multiplexing (OFDM) symbol occupied by a PRACH resource, an index (t_id) of a first time slot occupied by the PRACH resource, an index (f_id) of a frequency domain corresponding to the PRACH resource, and an index (ul_carrier_id) of an uplink carrier occupied by the PRACH resource.

It should be understood that in some embodiments, the reduced capability terminal and the non-reduced capability terminal may determine the first RNTI according to the RAPID and the information of the PRACH resource that transmits the Preamble, where the RAPID corresponding to the different types of terminals is different, and the first RNTI corresponding to the different types of terminals is also different. Or in other embodiments, the capability-reduced terminal determines the first RNTI according to the RAPID and the information of the PRACH resource sending the Preamble, and the non-capability-reduced terminal determines the first RNTI according to the information of the PRACH resource sending the Preamble, so that the calculated first RNTI is different even if the capability-reduced terminal and the non-capability-reduced terminal use the shared RO resource. Or in some embodiments, the capability-reduced terminal determines the first RNTI according to the information of the PRACH resource sending the Preamble, and the non-capability-reduced terminal determines the first RNTI according to the RAPID and the information of the PRACH resource sending the Preamble, so that the calculated first RNTI is different even if the capability-reduced terminal and the non-capability-reduced terminal use the shared RO resource.

Hereinafter, a method for determining the first RNTI when the first RNTI is the RA-RNTI and the MSGB-RNTI is described.

Case one: the first RNTI is RA-RNTI

Mode one

The terminal equipment calculates RA-RNTI according to the following formula (1):

RA-rnti=1+rapid+64×s_id+64×14×t_id+64×14×80×f_id+64×14×80×8×ul_carrier_id equation (1)

Wherein, RAPID is the index of Preamble, s_id is index of the first OFDM symbol occupied by PRACH resource, s_id is 0 less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is the uplink carrier (UL carrier) on which the PRACH resource is located.

Mode two

The terminal equipment calculates RA-RNTI according to the following formula (2):

RA-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×rapid formula (2)

Wherein, RAPID is the index of Preamble, s_id is index of the first OFDM symbol occupied by PRACH resource, s_id is 0 less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

Mode three

The terminal equipment calculates RA-RNTI according to the following formula (3):

RA-RNTI=1+RAPID-RedCAP+RedCAP-TotalNumberOfRA-preamples × id+RedCAP-TotalNumberOfRA-preamples ×14×t_id+RedCAP-TotalNumberOfRA-preamples ×14×80×f_id+64×14×80×8×ul_carrier_id equation (3)

Wherein, RAPID-RedCAP is the index of the Preamble used by the RedCAP terminal, and RedCAP-TotalNumberOfRA-preables represents the maximum number of the Preamble used for reducing the random access of the capability terminal, s_id is the index of the first OFDM symbol occupied by PRACH resource, and s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is the uplink carrier (UL carrier) on which the PRACH resource is located.

In some embodiments, the RedCAP-TotalNumberOfRA-preables may be configured by high-level parameters (RedCAP-TotalNumberOfRA-preables).

In some implementations, the Preambles in the Preamble set configured for the RedCap terminal may be numbered, where the RAPID-RedCap may be the number of the Preamble, and the value of RAPID-RedCap may be 1,2, …, and RedCap-total number of ra-preables.

In some embodiments, the value of the RedCap-TotalNumberOfRA-preamps may be 64, i.e. the maximum number of preamps used for reducing the random access of the capability terminal is 64, and then the RAPID-RedCap may include 64 values.

Mode four

The terminal equipment calculates MSGB-RNTI according to the following formula (4):

RA-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×rapid-RedCap formula (4)

Wherein, RAPID-RedCap is index of Preamble used by RedCap terminal, s_id is index of first OFDM symbol occupied by PRACH resource, s_id is 0 is less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

The related implementation of the RAPID-RedCap reference mode three is not repeated here for brevity.

In some embodiments of the present application, the terminal device calculates the RA-RNTI according to the following equation (5):

RA-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id formula (5)

Wherein s_id is index of the first OFDM symbol occupied by PRACH resource, s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

In some embodiments, the reduced capability terminal and the non-reduced capability terminal may calculate the RA-RNTI according to equation (1). Since the RAPID corresponding to different types of terminals is different, the RA-RNTI calculated according to formula (1) is also different.

In some embodiments, the reduced capability terminal and the non-reduced capability terminal may calculate the RA-RNTI according to equation (2). Since the RAPID corresponding to different types of terminals is different, the RA-RNTI calculated according to equation (2) is also different.

In some embodiments, the reduced capability terminal may calculate the RA-RNTI according to equation (1) and the non-reduced capability terminal may calculate the RA-RNTI according to equation (5). Alternatively, the non-reduced capability terminal may calculate the RA-RNTI according to equation (1), and the reduced capability terminal may calculate the RA-RNTI according to equation (5). In this case, the value of RAPID used to calculate RA-RNTI is not zero.

In some embodiments, the reduced capability terminal may calculate the RA-RNTI according to equation (2), and the non-reduced capability terminal may calculate the RA-RNTI according to equation (5). Alternatively, the non-reduced capability terminal may calculate the RA-RNTI according to equation (2), and the reduced capability terminal may calculate the RA-RNTI according to equation (5). In this case, the value of RAPID used to calculate RA-RNTI is not zero.

In some embodiments, the reduced capability terminal may calculate the RA-RNTI according to equation (3), and the non-reduced capability terminal may calculate the RA-RNTI according to equation (5). Alternatively, the non-reduced capability terminal may calculate the RA-RNTI according to equation (3) and the reduced capability terminal may calculate the RA-RNTI according to equation (5), in which case the RAPID-RedCap needs to be replaced with the RAPID of the non-reduced capability terminal and the RedCap-TotalNumberOfRA-preamps needs to be replaced with the maximum number of preamps for random access use by the non-reduced capability terminal.

In some embodiments, the reduced capability terminal may calculate the RA-RNTI according to equation (4), and the non-reduced capability terminal may calculate the RA-RNTI according to equation (5). Alternatively, the non-reduced capability terminal may calculate the RA-RNTI according to equation (4) and the reduced capability terminal may calculate the RA-RNTI according to equation (5), in which case the RAPID-RedCap needs to be replaced with the RAPID of the non-reduced capability terminal. In this case, the value of RAPID used to calculate RA-RNTI is not zero.

And a second case: the first RNTI is MSGB-RNTI

Mode five

The terminal equipment calculates MSGB-RNTI according to the following formula (6):

MSGB-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×RAPID formula (6)

Mode six

The terminal equipment calculates MSGB-RNTI according to the following formula (7):

MSGB-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×RAPID-RedCAP equation (7)

In some embodiments of the present application, the terminal device calculates the MSGB-RNTI according to the following formula (8):

MSGB-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2 equation (8)

In some embodiments, the reduced capability terminal and the non-reduced capability terminal may calculate the MSGB-RNTI according to equation (6). Since the RAPID corresponding to different types of terminals is different, the MSGB-RNTI calculated according to formula (6) is also different.

In some embodiments, the reduced capability terminal may calculate the RA-RNTI according to equation (6) and the non-reduced capability terminal may calculate the MSGB-RNTI according to equation (8). Alternatively, the non-reduced capability terminal may calculate the MSGB-RNTI according to equation (8), and the reduced capability terminal may calculate the RA-RNTI according to equation (6). In this case, the RAPID for calculating the MSGB-RNTI is not 1.

In some embodiments, the reduced capability terminal and the non-reduced capability terminal may calculate the MSGB-RNTI according to equation (7). Since the RAPID corresponding to different types of terminals is different, the MSGB-RNTI calculated according to formula (7) is also different.

In some embodiments, the reduced capability terminal may calculate the RA-RNTI according to equation (7) and the non-reduced capability terminal may calculate the MSGB-RNTI according to equation (8). Alternatively, the non-reduced capability terminal may calculate the MSGB-RNTI according to equation (8) and the reduced capability terminal may calculate the RA-RNTI according to equation (7), in which case the RAPID-RedCAP needs to be replaced with the RAPID of the non-reduced capability terminal. In this case, the RAPID for calculating the MSGB-RNTI is not 1.

In summary, in the embodiment of the present application, the first RNTI corresponding to the first information is generated according to the RAPID of the terminal device by defining the first RNTI, and meanwhile, since the network device configures different RAPID for different types of terminal devices, it can be ensured that the network device carries the first information of different types of terminal devices through different first RNTIs, so that the network device can optimize the transmission of different types of terminal devices in the second step in the random access process, for example, the transmission mode of the downlink channel, such as scheduling resource size, modulation coding scheme, etc., is set according to the type of the terminal, which is beneficial to improving the downlink spectrum efficiency.

Fig. 5 is a schematic interaction diagram of a method 300 of wireless communication according to an embodiment of the application, as shown in fig. 5, the method 300 including at least part of the following:

s301, network equipment determines a first wireless network temporary identifier RNTI according to first identification information;

correspondingly, S311, the terminal equipment determines a first radio network temporary identifier RNTI according to the first identification information;

further, in S320, the network device sends first information scrambled by the first RNTI, where the first information is downlink information in the random access procedure.

In some embodiments, the terminal device may perform S311 after sending Msg1, and the network device performs S301 after receiving Msg1, but embodiments of the present application are not limited to the execution sequence of S301 and S311.

As an example, the terminal device may indicate the type of the terminal device through at least one of a random access preamble, an initial uplink BWP transmitting the first message, and PRACH resources transmitting the first message.

For example, different types of terminal devices may indicate the type of the terminal device to the network device using different random access preambles.

As another example, different types of terminal devices may indicate the type of terminal device to the network device by transmitting a random access preamble using different initial uplink BWP.

As another example, different types of terminal devices may send random access preambles to the network device via different PRACH resources (e.g., time domain resources, frequency domain resources, or code domain resources, etc.) to indicate the type of terminal device.

In some embodiments, the first information is scrambled by the first RNTI. Or the first information includes information scrambled by the first RNTI. For example, the CRC of the first information is scrambled by a first RNTI.

It should be understood that the association of the first identification information with the type of the terminal device may refer to that different types of terminals correspond to different first identification information, that is, different types of terminals may be distinguished by the first identification information, and the first identification information may refer to any identification information for distinguishing different types of terminals.

Hereinafter, a specific implementation of the first identification information will be described with reference to specific embodiments.

Embodiment one: the first identification information is the RAPID of the terminal equipment

In some scenarios, the RAPID of the terminal device may be configured according to the type or capability of the terminal device, in which case the type or capability of the terminal device may be distinguished according to the RAPID of the terminal device, so the first identification information may be implemented by the RAPID of the terminal device.

It should be understood that, in the first embodiment, the specific implementation of determining the first RNTI according to the RAPID of the terminal device may refer to the related implementation from the first mode to the sixth mode in the method 200, which is not described herein for brevity.

Embodiment two: the first identification information is identification information of a Preamble set of the terminal equipment.

In some embodiments, the Preamble set of the terminal device is configured according to the type or capability of the terminal device, so that terminals of different types or capabilities can be distinguished according to the identification information of the Preamble set.

In the second embodiment, terminals of the same type or capability may be configured with the same Preamble set, so that, for terminals of the same type or capability, the network device may use the same first RNTI to transmit the first information of the terminal of the same type or capability, which is beneficial to avoiding resource waste caused by using different RNTIs to transmit the first information of terminals of the same type or capability but using different preambles.

Case 1: the first RNTI is RA-RNTI

Mode seven

The terminal equipment calculates RA-RNTI according to the following formula (9):

RA-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×p formula (9)

Wherein P is the identification information of the Preamble set, s_id is the index of the first OFDM symbol occupied by PRACH resource, s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

In some embodiments, when the reduced capability terminal may respectively correspond to multiple Preamble sets, the multiple Preamble sets may correspond to multiple identification information, that is, multiple values of the parameter P may exist. For example, the multiple Preamble sets may correspond to RedCap terminals having different numbers of receive antennas. For example, in some frequency bands, a non-RedCap terminal requires a minimum supported number of receive antennas of 4, and for a RedCap terminal, the number of receive antennas may be reduced to 2 or 1. For the RedCap terminals with receiving antennas of 2 and 1, if the terminals are distinguished by different Preamble sets on one RO, each Preamble set may be set to correspond to one piece of identification information for calculating RA-RNTI. In this case, the value of the parameter P may include, for example, 2 and 3, and each of the values corresponds to a different Preamble set.

Case 2: the first RNTI is MSGB-RNTI

Mode eight

The terminal equipment calculates MSGB-RNTI according to the following formula (10):

MSGB-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×P formula (10)

Wherein P is the identification information of the Preamble set, s_id is index of the first OFDM symbol occupied by PRACH resource, s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

Mode nine

The terminal equipment calculates MSGB-RNTI according to the following formula (11):

MSGB-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul u Carrier_id+14X10X18×2+14X10X10X10X12X12×P formula (11)

In some embodiments, both reduced capability and non-reduced capability terminals calculate the RA-RNTI according to equation (9). Because the Preamble sets corresponding to different types of terminals are different, and accordingly, the identification information of the Preamble sets is also different, so that the RA-RNTIs calculated according to the formula (9) are also different.

In some embodiments, the reduced capability terminal calculates the RA-RNTI according to equation (9), the non-reduced capability terminals each calculate the RA-RNTI according to equation (5) above, or the non-reduced capability terminals calculate the RA-RNTI according to equation (9), and the reduced capability terminals each calculate the RA-RNTI according to equation (5) above. In this case, the value of P is not 0.

In some embodiments, both reduced capability and non-reduced capability terminals may calculate the MSGB-RNTI according to equation (10). Because the Preamble sets corresponding to different types of terminals are different, and accordingly, the identification information of the Preamble sets is also different, so that the MSGB-RNTI calculated according to the formula (10) is also different.

In some embodiments, the reduced capability terminal calculates the MSGB-RNTI according to equation (10), the non-reduced capability terminal calculates the MSGB-RNTI according to equation (8) above, or the non-reduced capability terminal calculates the RA-RNTI according to equation (10), and the reduced capability terminal calculates the RA-RNTI according to equation (8) above. In this case, the value of P is not 1.

In some embodiments, both reduced capability and non-reduced capability terminals may calculate the MSGB-RNTI according to equation (11). Because the Preamble sets corresponding to different types of terminals are different, and accordingly, the identification information of the Preamble sets is also different, so that the MSGB-RNTI calculated according to the formula (11) is also different.

In some embodiments, the reduced capability terminal calculates the MSGB-RNTI according to equation (11) and the non-reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, P is not equal to 0.

In some embodiments, the non-reduced capability terminals calculate the MSGB-RNTI according to equation (11), and the reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, P is not equal to 0.

Embodiment III: the first identification information is identification information of the type of the terminal equipment.

For example, the terminal device is a reduced capability terminal, the value of the first identification information is a first value, the terminal device is a non-reduced capability terminal, the value of the first identification information is a second value, and the first value and the second value are different.

Case 1: the first RNTI is RA-RNTI

Mode ten

The terminal equipment calculates RA-RNTI according to the following formula (12):

RA-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×r formula (12)

Wherein R is identification information of the type of the terminal equipment, s_id is index of the first OFDM symbol occupied by PRACH resource, s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

Case 2: the first RNTI is MSGB-RNTI

Mode eleven

The terminal equipment calculates MSGB-RNTI according to the following formula (13):

MSGB-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×R equation (13)

Wherein R is identification information of the type of the terminal equipment, s_id is index of a first OFDM symbol occupied by PRACH resources, and s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

Twelve modes

The terminal equipment calculates MSGB-RNTI according to the following formula (14):

MSGB-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul u Carrier_id+14X10X18×2+14X10X10X10X12X2×R equation (14)

In some embodiments, both reduced capability and non-reduced capability terminals calculate the RA-RNTI according to equation (12). Since the type identities corresponding to the different types of terminals are different, the RA-RNTIs calculated according to equation (12) are also different.

In some embodiments, the reduced capability terminal calculates the RA-RNTI according to equation (12). The non-reduced capability terminals all calculate the RA-RNTI according to the formula (5). In this case, R is not equal to 0.

In some embodiments, the non-reduced capability terminal calculates the RA-RNTI according to equation (12). The reduced capability terminals all calculate the RA-RNTI according to the formula (5). In this case, R is not equal to 0.

In some embodiments, both reduced capability and non-reduced capability terminals calculate the MSGB-RNTI according to equation (13). Since the type identifiers corresponding to the different types of terminals are different, the MSGB-RNTI calculated according to equation (13) is also different.

In some embodiments, the reduced capability terminal calculates the MSGB-RNTI according to equation (13) and the non-reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, R is not equal to 1.

In some embodiments, the non-reduced capability terminal calculates the MSGB-RNTI according to equation (13) and the reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, R is not equal to 1.

In some embodiments, both reduced capability and non-reduced capability terminals calculate the MSGB-RNTI according to equation (14). Since the type identifiers corresponding to the different types of terminals are also different, the MSGB-RNTI calculated according to equation (14) is also different.

In some embodiments, the reduced capability terminal calculates the MSGB-RNTI according to equation (14) and the non-reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, R is not equal to 0.

In some embodiments, the non-reduced capability terminal calculates the MSGB-RNTI according to equation (14), and the reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, R is not equal to 0.

Embodiment four: the first identification information is identification information related to the transmission mode requested by the terminal equipment and is marked as a transmission mode identification.

In some scenarios, the terminal device may request a downlink transmission mode and/or coverage level from the network device through an uplink message in a random access procedure (e.g., a first message in a random access procedure, such as Msg1 or MsgA).

For example, for a coverage limited terminal device, such as a reduced capability terminal, a certain downlink transmission mode and/or coverage level may be requested from the network device according to the measurement result of the downlink reference signal, so as to improve network coverage.

In some embodiments, the downlink transmission and/or coverage level requested by different types of terminal devices (e.g., different capabilities or coverage situations) to the network device is different. Thus, the network device can distinguish between different types of terminals accordingly. Further adopting different transmission mode identifiers to represent terminals with different transmission modes or coverage levels, and calculating RA-RNTI or MSGB-RNTI through the transmission mode identifiers, so that different types of terminals can be distinguished through the RA-RNTI or the MSGB-RNTI.

In some embodiments, the downlink transmission manner may include a transmission manner of the first information, for example, a transmission manner of the RAR, or a transmission manner of the MsgB.

In some embodiments, the transmission manner of the RAR or the transmission manner of the MsgB may include a transmission manner of a PDCCH for scheduling the RAR and/or a transmission manner of a PDSCH for carrying the RAR.

In some embodiments, the transmission mode of the PDCCH may include a repeated transmission mode of the PDCCH, and the transmission mode of the PDSCH may include a repeated transmission mode of the PDSCH.

In some embodiments, the transmission mode may include information related to transmission, such as a scheduling resource size, a modulation coding scheme, and the like.

Case 1: the first RNTI is RA-RNTI

Mode thirteen

The terminal device calculates the RA-RNTI according to the following formula (15):

RA-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×q formula (15)

Wherein Q is a transmission mode identifier, s_id is index of the first OFDM symbol occupied by PRACH resource, s_id is more than or equal to 0 and less than or equal to 14; t_id is index of the first slot occupied by PRACH resource, and t_id is more than or equal to 0 and less than 80; f_id is index of PRACH resource in frequency domain, f_id is 0-8; ul_carrier_id is UL carrier where PRACH resources are located.

Case 2: the first RNTI is MSGB-RNTI

Mode fourteen

The terminal equipment calculates MSGB-RNTI according to the following formula (16):

MSGB-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×Q equation (16)

Mode fifteen

The terminal equipment calculates MSGB-RNTI according to the following formula (17):

MSGB-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul u Carrier_id+14X10X18×2+14X10X10X10X12X2×Q equation (17)

In some embodiments, both reduced capability and non-reduced capability terminals calculate the RA-RNTI according to equation (15). Since the downlink transmission modes of different types of terminal requests are different, the corresponding transmission mode identifiers are different, and therefore, the RA-RNTIs calculated according to the formula (15) are also different.

In some embodiments, the reduced capability terminal calculates the RA-RNTI according to equation (15). The non-reduced capability terminals all calculate the RA-RNTI according to the formula (5). In this case, Q is not equal to 0.

In some embodiments, the non-reduced capability terminal calculates the RA-RNTI according to equation (15). The reduced capability terminals all calculate the RA-RNTI according to the formula (5). In this case, Q is not equal to 0.

In some embodiments, both reduced capability and non-reduced capability terminals calculate the MSGB-RNTI according to the equation (16). Since the downlink transmission modes of different types of terminal requests are different, the corresponding transmission mode identifiers are different, and therefore, the MSGB-RNTI calculated according to the formula (16) is also different.

In some embodiments, the reduced capability terminal calculates the MSGB-RNTI according to equation (16) and the non-reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, Q is not equal to 1.

In some embodiments, the non-reduced capability terminal calculates the MSGB-RNTI according to equation (16), and the reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, Q is not equal to 1.

In some embodiments, both reduced capability and non-reduced capability terminals calculate the MSGB-RNTI according to the equation (17). Because the downlink transmission modes of different types of terminal requests are different, corresponding transmission mode identifiers are different, and therefore, the MSGB-RNTI calculated according to the formula (17) is also different.

In some embodiments, the reduced capability terminal calculates the MSGB-RNTI according to equation (17) and the non-reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, Q is not equal to 0.

In some embodiments, the non-reduced capability terminal calculates the MSGB-RNTI according to equation (17), and the reduced capability terminals each calculate the RA-RNTI according to equation (8). In this case, Q is not equal to 0.

In summary, in the embodiment of the present application, the first RNTI corresponding to the first information is generated according to the first identifier information associated with the type of the terminal device, and because the first identifier information corresponding to the different types of terminal devices is different, it can be ensured that the network device carries the first information of the different types of terminal devices through the different first RNTIs, so that the second step in the random access process of the network device can optimize the transmission of the different types of terminal devices, for example, the transmission mode of the downlink channel is set according to the type of the terminal, for example, the scheduling resource size, the modulation coding scheme, and the like, which is beneficial to improving the downlink spectrum efficiency.

Fig. 6 is a schematic interaction diagram of a method 400 of wireless communication according to an embodiment of the application, as shown in fig. 6, the method 400 including at least part of the following:

S410, the network equipment uses the first resource to send first information in the random access process;

correspondingly, the terminal equipment uses the first resource to receive the first information sent by the network equipment in the random access process

In the embodiment of the present application, the first resource is a resource corresponding to the type of the terminal device.

In some embodiments, the network device may configure the terminal devices of different types or capabilities with corresponding resources for receiving the first information.

For example, the terminal device receives second configuration information of the network device, where the second configuration information is used to configure resources used by the terminal device of the type to which the terminal device belongs to receive the first information.

In some embodiments, the second configuration information is sent by a system message, e.g., by SIB 1.

In some embodiments, the types of the terminal devices may be divided according to capabilities of the terminal devices, and the capabilities of the terminal devices may include at least one of the following, for example: the supported bandwidth size, data processing capacity, maximum modulation order, number of receive antennas, receive antenna gain, and coverage capability level. Alternatively, other performance metrics may be included, and the application is not limited thereto.

In the embodiment of the application, the terminal equipment is a reduced-capability terminal or a non-reduced-capability terminal.

In some embodiments, the first information is a PDCCH scheduling a RAR, or the first information is a message B. That is, the first resource may be a resource for receiving a PDCCH, or a resource for receiving an MsgB.

In some embodiments, the first resource comprises at least one of:

the initial downlink bandwidth part BWP controls the resource set COREST, searching space.

For example, for different types of terminals, the network device may be configured to be different in at least one of:

an initial downstream bandwidth portion BWP, a control resource set (Control Resource Set, CORESET), a Search Space (SS).

For example, the network device may configure the reduced-capability terminal and the non-reduced-capability terminal to receive the first information using different initial downstream BWP, or to receive the first information using different CORESET or SS.

Fig. 7 is a schematic diagram of distinguishing between reduced capability terminals and non-reduced capability terminals by different CORESET in the same downstream BWP. Fig. 8 is a schematic diagram of distinguishing between reduced capability terminals and non-reduced capability terminals by different downstream BWP.

In summary, in the embodiment of the present application, the resources for sending the first information corresponding to the different types of terminal devices are different, and the network device sends the first information through the resources associated with the types of the terminal devices, so that the network device can ensure that the network device carries the first information sent to the different types of terminal devices through the different resources, so that the network device can optimize the transmission of the different types of terminal devices in the second step in the random access process, for example, the transmission mode of the downlink channel is set according to the types of the terminal, for example, the scheduling resource size, the modulation coding scheme, and the like, which is beneficial to improving the downlink spectrum efficiency.

The method embodiments of the present application are described in detail above with reference to fig. 4 to 8, and the apparatus embodiments of the present application are described in detail below with reference to fig. 9 to 17, it being understood that the apparatus embodiments and the method embodiments correspond to each other, and similar descriptions may refer to the method embodiments.

Fig. 9 shows a schematic block diagram of a terminal device 500 according to an embodiment of the application. As shown in fig. 9, the terminal device 500 includes:

a processing unit 510, configured to determine a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal device;

and a communication unit 520, configured to receive, according to the first RNTI, first information sent by the network device in a random access procedure.

In some embodiments of the application, the first RNTI includes a random access radio network temporary identity, RA-RNTI.

In some embodiments of the present application, the first information includes a physical downlink control channel PDCCH for scheduling a random access response RAR and/or a physical downlink shared channel PDSCH for carrying the RAR.

In some embodiments of the present application, the first RNTI includes a message B radio network temporary identity MSGB-RNTI, and the message B is a second message in a two-step random access procedure.

In some embodiments of the application, the first information comprises message B.

In some embodiments of the present application, the communication unit 520 is further configured to:

receiving first configuration information sent by the network device, where the first configuration information is used to configure a first RAPID set, where the first RAPID set includes at least one RAPID, the first RAPID set corresponds to a terminal device of a first type, and the first type is a type to which the terminal device belongs.

In some embodiments of the present application, the first type of terminal device is a reduced capability terminal.

In some embodiments of the present application, none of the RAPID included in the first RAPID set is zero.

In some embodiments of the present application, the communication unit 510 is further configured to:

and indicating the type of the terminal equipment to the network equipment through a first message, wherein the first message is the first message in the random access process.

the type of the terminal device is indicated by at least one of a random access preamble in the first message, an initial uplink BWP used to transmit the first message, and PRACH resources used to transmit the first message.

Alternatively, in some embodiments, the communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 500 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 4, which is not described herein for brevity.

Fig. 10 shows a schematic block diagram of a terminal device 600 according to an embodiment of the application. As shown in fig. 10, the terminal device 600 includes:

a processing unit 610, configured to determine a first radio network temporary identifier RNTI according to first identification information, where the first identification information is associated with a type of the terminal device;

and a communication unit 620, configured to receive, according to the first RNTI, first information sent by the network device in a random access procedure.

In some embodiments of the application, the first RNTI includes a random access RA-RNTI.

In some embodiments of the present application, the associating the first identification information with the type of the terminal device includes: the first identification information is a Random Access Preamble Identification (RAPID) of the terminal equipment, and the RAPID of the terminal equipment is configured according to the type of the terminal equipment.

In some embodiments of the present application, the associating the first identification information with the type of the terminal device includes: the first identification information is identification information of a random access preamble set of the terminal equipment, and the random access preamble set of the terminal equipment is configured according to the type of the terminal equipment.

In some embodiments of the present application, the associating the first identification information with the type of the terminal device includes: the first identification information is identification information of the type of the terminal equipment.

In some embodiments of the present application, the first RNTI is RA-RNTI, and the value of the first identification information is not zero; or alternatively

The first RNTI is MSGB-RNTI, and the value of the first identification information is not 0 and 1.

In some embodiments of the present application, the type of the terminal device is a reduced capability terminal type or a non-reduced capability terminal type.

In some embodiments of the present application, the communication unit 620 is further configured to:

It should be understood that the terminal device 600 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 600 are respectively for implementing the corresponding flow of the terminal device in the method 300 shown in fig. 5, and are not described herein for brevity.

Fig. 11 shows a schematic block diagram of a terminal device 700 according to an embodiment of the application. As shown in fig. 11, the terminal device 700 includes:

and the communication unit 710 is configured to receive, using a first resource, first information sent by the network device in a random access procedure, where the first resource is a resource corresponding to a type of the terminal device.

In some embodiments of the present application, the first information is a physical downlink control channel PDCCH for scheduling a random access response RAR, or the first information is a message B.

In some embodiments of the application, the first resource comprises at least one of:

In some embodiments of the present application, the communication unit 710 is further configured to:

and receiving second configuration information of the network equipment, wherein the second configuration information is used for configuring resources used by the terminal equipment for receiving the first information.

In some embodiments of the application, the second configuration information is sent via a system message.

and indicating the type of the terminal equipment by at least one item of PRACH resources corresponding to the first message through a random access preamble and the initial uplink BWP corresponding to the first message.

It should be understood that the terminal device 700 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 700 are respectively for implementing the corresponding flow of the terminal device in the method 400 shown in fig. 6, and are not described herein for brevity.

Fig. 12 shows a schematic block diagram of a network device 800 according to an embodiment of the application. As shown in fig. 12, the network device 800 includes:

a processing unit 810, configured to determine a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of a terminal device;

And a communication unit 820, configured to send first information in a random access procedure to the terminal device according to the first RNTI.

In some embodiments of the present application, the communication unit 820 is further configured to:

and sending first configuration information to the terminal equipment, wherein the first configuration information is used for configuring a first RAPID set, the first RAPID set comprises at least one RAPID, the first RAPID set corresponds to the terminal equipment of a first type, and the first type is the type to which the terminal equipment belongs.

In some embodiments of the present application, the processing unit 810 is further configured to:

and determining the type of the terminal equipment according to a first message sent by the terminal equipment, wherein the first message is a first message in a random access process.

the type of the terminal device is determined according to at least one of a random access preamble in the first message, an initial uplink BWP used to transmit the first message, and PRACH resources used to transmit the first message.

It should be understood that the network device 800 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the network device 800 are respectively for implementing the corresponding flow of the network device in the method 200 shown in fig. 4, which is not described herein for brevity.

Fig. 13 shows a schematic block diagram of a network device 900 according to an embodiment of the application. As shown in fig. 13, the network device 900 includes:

a processing unit 910, configured to determine a first radio network temporary identifier RNTI according to first identification information, where the first identification information is associated with a type of a terminal device;

and a communication unit 920, configured to send first information of a random access procedure to the terminal device according to the first RNTI.

In some embodiments of the present application, the processing unit 910 is further configured to:

It should be understood that the network device 900 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the network device 900 are respectively for implementing the corresponding flow of the network device in the method 300 shown in fig. 5, and are not further described herein for brevity.

Fig. 14 shows a schematic block diagram of a network device 1000 according to an embodiment of the application. As shown in fig. 14, the network device 1000 includes:

and a communication unit 1010, configured to send first information in a random access procedure to a terminal device by using a first resource, where the first resource is a resource corresponding to a type of the terminal device.

In some embodiments of the present application, the communication unit 1010 is further configured to:

and sending second configuration information to the terminal equipment, wherein the second configuration information is used for configuring resources used by the terminal equipment for receiving the first information.

In some embodiments of the application, the network device further comprises:

and the processing unit is used for determining the type of the terminal equipment according to a first message sent by the terminal equipment, wherein the first message is a first message in a random access process.

In some embodiments of the present application, the processing unit is specifically configured to:

It should be understood that the network device 1000 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the network device 1000 are respectively for implementing the corresponding flow of the network device in the method 400 shown in fig. 6, and are not described herein for brevity.

Fig. 15 is a schematic block diagram of a communication device 1100 according to an embodiment of the present application. The communication device 1100 shown in fig. 15 comprises a processor 1110, from which the processor 1110 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 15, the communication device 1100 may also include a memory 1120. Wherein the processor 1110 may call and run a computer program from the memory 1120 to implement the methods in embodiments of the present application.

Wherein the memory 1120 may be a separate device from the processor 1110 or may be integrated into the processor 1110.

Optionally, as shown in fig. 15, the communication device 1100 may further include a transceiver 1130, and the processor 1110 may control the transceiver 1130 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 1130 may include, among other things, a transmitter and a receiver. Transceiver 1130 may further include antennas, the number of which may be one or more.

Optionally, the communication device 1100 may be a network device in the embodiment of the present application, and the communication device 1100 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 1100 may be specifically a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 1100 may implement a corresponding flow implemented by the mobile terminal/terminal device in each method according to an embodiment of the present application, which is not described herein for brevity.

Fig. 16 is a schematic structural view of a chip of an embodiment of the present application. The chip 1200 shown in fig. 16 includes a processor 1210, and the processor 1210 may call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

Optionally, as shown in fig. 16, the chip 1200 may further include a memory 1220. Wherein the processor 1210 may call and run computer programs from the memory 1220 to implement the methods of embodiments of the present application.

The memory 1220 may be a separate device from the processor 1210, or may be integrated into the processor 1210.

Optionally, the chip 1200 may also include an input interface 1230. Wherein the processor 1210 may control the input interface 1230 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 1200 may further include an output interface 1240. Wherein processor 1210 may control the output interface 1240 to communicate with other devices or chips, and in particular may output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 17 is a schematic block diagram of a communication system 1300 provided by an embodiment of the present application. As shown in fig. 17, the communication system 1300 includes a terminal device 1310 and a network device 1320.

The terminal device 1310 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1320 may be used to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

the terminal equipment determines a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal equipment;

and receiving first information sent by the network equipment in the random access process according to the first RNTI.
The method of claim 1, wherein the first RNTI comprises a random access radio network temporary identity, RA-RNTI.
The method according to claim 2, wherein the first information comprises a physical downlink control channel, PDCCH, for scheduling a random access response, RAR, and/or a physical downlink shared channel, PDSCH, for carrying the RAR.
The method of claim 1, wherein the first RNTI comprises a message B radio network temporary identity, MSGB-RNTI, the message B being a second message in a two-step random access procedure.
The method of claim 4, wherein the first information comprises message B.
The method according to any one of claims 1-5, further comprising:

the terminal equipment receives first configuration information sent by the network equipment, wherein the first configuration information is used for configuring a first RAPID set, the first RAPID set comprises at least one RAPID, the first RAPID set corresponds to terminal equipment of a first type, and the first type is the type to which the terminal equipment belongs.
The method of claim 6, wherein the first type of terminal device is a reduced capability terminal.
The method of claim 7, wherein none of the RAPID included in the first set of RAPID is zero.
The method according to any one of claims 1-8, further comprising:

the terminal equipment indicates the type of the terminal equipment to the network equipment through a first message, wherein the first message is the first message in the random access process.
The method according to claim 9, wherein the terminal device indicates the type of the terminal device to the network device by means of a first message, comprising:

The type of the terminal device is indicated by at least one of a random access preamble in the first message, an initial uplink BWP used to transmit the first message, and PRACH resources used to transmit the first message.
A method of wireless communication, comprising:

the terminal equipment determines a first Radio Network Temporary Identifier (RNTI) according to first identification information, wherein the first identification information is associated with the type of the terminal equipment;

and receiving first information sent by the network equipment in the random access process according to the first RNTI.
The method of claim 11, wherein the first RNTI comprises a random access RA-RNTI.
The method according to claim 12, wherein the first information comprises a physical downlink control channel, PDCCH, scheduling a random access response, RAR, and/or a physical downlink shared channel, PDSCH, carrying a RAR.
The method of claim 11, wherein the first RNTI comprises a message B radio network temporary identity, MSGB-RNTI, the message B being a second message in a two-step random access procedure.
The method of claim 14, wherein the first information comprises message B.
The method according to any of claims 11-15, wherein the association of the first identification information with the type of the terminal device comprises: the first identification information is a Random Access Preamble Identification (RAPID) of the terminal equipment, and the RAPID of the terminal equipment is configured according to the type of the terminal equipment.
The method according to any of claims 11-15, wherein the association of the first identification information with the type of the terminal device comprises: the first identification information is identification information of a random access preamble set of the terminal equipment, and the random access preamble set of the terminal equipment is configured according to the type of the terminal equipment.
The method according to any of claims 11-15, wherein the association of the first identification information with the type of the terminal device comprises: the first identification information is identification information of the type of the terminal equipment.
The method according to any of claims 11-18, wherein the first RNTI is a RA-RNTI and the value of the first identity information is non-zero; or alternatively

The first RNTI is MSGB-RNTI, and the value of the first identification information is not 0 and 1.
The method according to any of claims 11-19, wherein the type of terminal device is a reduced capability terminal type or a non-reduced capability terminal type.
The method according to any one of claims 11-20, further comprising:

the terminal equipment indicates the type of the terminal equipment to the network equipment through a first message, wherein the first message is the first message in the random access process.
The method according to claim 21, wherein the terminal device indicates the type of the terminal device to the network device by means of a first message, comprising:

the type of the terminal device is indicated by at least one of a random access preamble in the first message, an initial uplink BWP used to transmit the first message, and PRACH resources used to transmit the first message.
A method of wireless communication, comprising:

and the terminal equipment uses a first resource to receive first information sent by the network equipment in the random access process, wherein the first resource is a resource corresponding to the type of the terminal equipment.
The method of claim 23, wherein the first information is a physical downlink control channel, PDCCH, scheduling a random access response, RAR, or wherein the first information is a message B.
The method of claim 23 or 24, wherein the first resource comprises at least one of:

the initial downlink bandwidth part BWP controls the resource set COREST, searching space.
The method according to any one of claims 23-25, further comprising:

the terminal equipment receives second configuration information of the network equipment, wherein the second configuration information is used for configuring resources used by the terminal equipment for receiving the first information.
The method of claim 26, wherein the second configuration information is sent via a system message.
The method according to any one of claims 23-27, further comprising:

the terminal equipment indicates the type of the terminal equipment to the network equipment through a first message, wherein the first message is the first message in the random access process.
The method according to claim 28, wherein the terminal device indicates the type of the terminal device to the network device by means of a first message, comprising:

and indicating the type of the terminal equipment by at least one item of PRACH resources corresponding to the first message through a random access preamble and the initial uplink BWP corresponding to the first message.
The method according to any of claims 23-29, wherein the type of terminal device is a reduced capability terminal type or a non-reduced capability terminal type.
A method of wireless communication, comprising:

the network equipment determines a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal equipment;

and sending first information in the random access process to the terminal equipment according to the first RNTI.
The method of claim 31, wherein the first RNTI comprises a random access radio network temporary identity, RA-RNTI.
The method according to claim 32, wherein the first information comprises a physical downlink control channel, PDCCH, for scheduling a random access response, RAR, and/or a physical downlink shared channel, PDSCH, for carrying the RAR.
The method of claim 31, wherein the first RNTI comprises a message B radio network temporary identity, MSGB-RNTI, the message B being a second message in a two-step random access procedure.
The method of claim 34, wherein the first information comprises message B.
The method according to any one of claims 31-35, further comprising:

The network device sends first configuration information to the terminal device, where the first configuration information is used to configure a first RAPID set, the first RAPID set includes at least one RAPID, the first RAPID set corresponds to a terminal device of a first type, and the first type is a type to which the terminal device belongs.
The method of claim 36, wherein the first type of terminal device is a reduced capability terminal.
The method of claim 37, wherein none of the RAPID included in the first set of RAPID is zero.
The method according to any one of claims 31-38, further comprising:

the network equipment determines the type of the terminal equipment according to a first message sent by the terminal equipment, wherein the first message is a first message in a random access process.
The method of claim 39, wherein the network device determining the type of the terminal device based on the first message sent by the terminal device comprises:

the network device determines the type of the terminal device according to at least one of a random access preamble in the first message, an initial uplink BWP used for transmitting the first message, and PRACH resources used for transmitting the first message.
A method of wireless communication, comprising:

the network equipment determines a first wireless network temporary identifier RNTI according to first identification information, wherein the first identification information is associated with the type of the terminal equipment;

and sending first information of a random access process to the terminal equipment according to the first RNTI.
The method of claim 41, wherein the first RNTI comprises a random access RA-RNTI.
The method of claim 42, wherein the first information comprises a physical downlink control channel, PDCCH, scheduling a random access response, RAR, and/or a physical downlink shared channel, PDSCH, carrying the RAR.
The method of claim 41, wherein the first RNTI comprises a message B radio network temporary identity, MSGB-RNTI, the message B being a second message in a two-step random access procedure.
The method of claim 44, wherein the first information comprises message B.
The method according to any of claims 41-45, wherein the association of the first identification information with the type of the terminal device comprises: the first identification information is a Random Access Preamble Identification (RAPID) of the terminal equipment, and the RAPID of the terminal equipment is configured according to the type of the terminal equipment.
The method according to any of claims 41-45, wherein the association of the first identification information with the type of the terminal device comprises: the first identification information is identification information of a random access preamble set of the terminal equipment, and the random access preamble set of the terminal equipment is configured according to the type of the terminal equipment.
The method according to any of claims 41-45, wherein the association of the first identification information with the type of the terminal device comprises: the first identification information is identification information of the type of the terminal equipment.
The method according to any one of claims 41-48, wherein the first RNTI is a RA-RNTI and the value of the first identity information is non-zero; or alternatively

The first RNTI is MSGB-RNTI, and the value of the first identification information is not 0 and 1.
The method according to any of claims 41-49, wherein the type of terminal device is a reduced capability terminal type or a non-reduced capability terminal type.
The method of any one of claims 41-50, further comprising:

the network equipment determines the type of the terminal equipment according to a first message sent by the terminal equipment, wherein the first message is a first message in a random access process.
The method of claim 51, wherein the network device determining the type of the terminal device based on the first message sent by the terminal device comprises:

the network device determines the type of the terminal device according to at least one of a random access preamble in the first message, an initial uplink BWP used for transmitting the first message, and PRACH resources used for transmitting the first message.
A method of wireless communication, comprising:

and the network equipment uses the first resource to send first information in the random access process to the terminal equipment, wherein the first resource is a resource corresponding to the type of the terminal equipment.
The method of claim 53, wherein the first information is a physical downlink control channel, PDCCH, scheduling a random access response, RAR, or the first information is a message B.
The method of claim 53 or 54, wherein the first resource comprises at least one of:

the initial downlink bandwidth part BWP controls the resource set COREST, searching space.
The method of any one of claims 53-55, further comprising:

The network device sends second configuration information to the terminal device, where the second configuration information is used to configure resources used by the terminal device to receive the first information.
The method of claim 56, wherein said second configuration information is sent via a system message.
The method of any one of claims 53-57, further comprising:

the network equipment determines the type of the terminal equipment according to a first message sent by the terminal equipment, wherein the first message is a first message in a random access process.
The method of claim 58, wherein the network device determining the type of the terminal device based on the first message sent by the terminal device comprises:

the network device determines the type of the terminal device according to at least one of a random access preamble in the first message, an initial uplink BWP used for transmitting the first message, and PRACH resources used for transmitting the first message.
The method of claim 59, wherein the type of terminal device is a reduced capability terminal type or a non-reduced capability terminal type.
A terminal device, comprising:

a processing unit, configured to determine a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of the terminal device;

and the communication unit is used for receiving the first information sent by the network equipment in the random access process according to the first RNTI.
A terminal device, comprising:

a processing unit, configured to determine a first radio network temporary identifier RNTI according to first identification information, where the first identification information is associated with a type of the terminal device;

and the communication unit is used for receiving the first information sent by the network equipment in the random access process according to the first RNTI.
A terminal device, comprising:

and the communication unit is used for receiving first information sent by the network equipment in the random access process by using first resources, wherein the first resources are resources corresponding to the type of the terminal equipment.
A network device, comprising:

a processing unit, configured to determine a first radio network temporary identifier RNTI according to a random access preamble identifier RAPID of a terminal device;

and the communication unit is used for sending first information in the random access process to the terminal equipment according to the first RNTI.
A network device, comprising:

a processing unit, configured to determine a first radio network temporary identifier RNTI according to first identification information, where the first identification information is associated with a type of a terminal device;

and the communication unit is used for sending first information of a random access process to the terminal equipment according to the first RNTI.
A network device, comprising:

and the communication unit is used for sending first information in the random access process to the terminal equipment by using first resources, wherein the first resources are resources corresponding to the type of the terminal equipment.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method of any of claims 1 to 10, or the method of any of claims 11 to 22, or the method of any of claims 23 to 30.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 10, or the method of any one of claims 11 to 22, or the method of any one of claims 23 to 30.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 10, or the method of any one of claims 11 to 22, or the method of any one of claims 23 to 30.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 10, or the method of any one of claims 11 to 22, or the method of any one of claims 23 to 30.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 10, or the method of any one of claims 11 to 22, or the method of any one of claims 23 to 30.
A network device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method of any of claims 1 to 10, or the method of any of claims 11 to 22, or the method of any of claims 23 to 30.
A chip, comprising: a processor for calling and running a computer program from memory, causing a device on which the chip is mounted to perform the method of any one of claims 31 to 40, or the method of any one of claims 41 to 52, or the method of any one of claims 53 to 60.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 31 to 40, or the method of any one of claims 41 to 52, or the method of any one of claims 53 to 60.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 31 to 40, or the method of any one of claims 41 to 52, or the method of any one of claims 53 to 60.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 31 to 40, or the method of any one of claims 41 to 52, or the method of any one of claims 53 to 60.