WO2018137512A1

WO2018137512A1 - Preamble resource grouping method, preamble selection method, network equipment, and terminal equipment

Info

Publication number: WO2018137512A1
Application number: PCT/CN2018/072810
Authority: WO
Inventors: 颜矛; 陈磊
Original assignee: 华为技术有限公司
Priority date: 2017-01-24
Filing date: 2018-01-16
Publication date: 2018-08-02
Also published as: CN108347768A; CN108347768B

Abstract

The embodiments of the invention disclose a preamble resource grouping method, a preamble selection method, network equipment, and terminal equipment. The preamble resource grouping method comprises: network equipment transmitting, to terminal equipment, a preamble resource group and configuration information thereof, wherein the preamble resource group is a set of preambles, and the configuration information of the preamble resource group comprises an information type of the preamble resource group and/or a configuration value of the information type; and receiving a preamble transmitted from the terminal equipment and belonging to the set of preambles. The network equipment can rapidly obtain information of the terminal equipment, and reduce, by using less overhead, a random access delay.

Description

Preamble resource grouping method, preamble selection method, network device and terminal device

Technical field

The present application relates to the field of mobile communications technologies, and in particular, to a preamble resource grouping method, a preamble selection method, a network device, and a terminal device.

Background technique

With the development of wireless communication technology, the demand for data transmission speed and efficiency of mobile services is increasing, and thus higher requirements are imposed on the bandwidth and transmission mode of wireless communication.

Due to the limited bandwidth of low-frequency bandwidth, the fifth-generation mobile communication technology (5th-Generation, 5G) communication system will adopt a higher carrier frequency than Long Term Evolution (LTE) (generally, more than 6GHz). ), such as the 28 GHz, 38 GHz, or 72 GHz band, to achieve wireless communication with greater bandwidth and higher transmission rate. Due to the high carrier frequency, the wireless signal it transmits undergoes more severe fading during spatial propagation, and it is difficult to detect the wireless signal even at the receiving end. To this end, beamforming (BF) technology will be used in 5G communication systems to obtain beams with good directivity to improve power in the transmit direction and improve the signal to interference ratio (Signal to Interference plus Noise Ratio) at the receiving end. , SINR). In order to increase the coverage and control the cost of the antenna array, hybrid beamforming (HBF) technology is the best choice. It also includes analog beamforming (ABF) and digital beamforming (DBF). ). Among them, DBF and LTE are similar in Multi-Input Multi-Output (MIMO), while ABF adjusts the direction of the analog beam by changing the weight between each array element in the antenna array.

Since a plurality of devices exist in a communication network at the same time, the bandwidth capability supported by different devices, the correspondence between the transmit beam and the receive beam, and the path loss with the base station may be different from each other. Therefore, it brings great challenges to the design and scheduling of the network.

In LTE, the random access is mainly used to implement uplink synchronization of the user equipment (User Equipment, UE) and the network side, and apply for uplink communication resources. The preamble carrying random access contains a Zadoff-Chu sequence of length 839. In the random access channel (RACH) of the LTE network, there are 64 preamble sequences for random access. The 64 preamble sequences may be divided into 2 groups, for example: group A and group B, respectively. When the Msg3 of the UE is less than the specified threshold, the preamble is selected from the group A for random access, otherwise it is selected from the group B. In LTE, the sequence information of the above preamble, the information of the packet, and the threshold of the Msg3 size are carried by the downlink system information block (SIB) to the UE. On the base station side, the base station allocates resources for uplink transmission by the UE to the UE according to the preamble sent by the UE.

In the future, there are terminal devices with different capabilities in the wireless communication network. The current random access process cannot transmit the information of the terminal device to the base station in time, resulting in an increase in random access overhead and a long delay.

Summary of the invention

The technical problem to be solved by the embodiments of the present application is to provide a method for grouping preamble resources, a method for selecting a preamble, a network device, and a terminal device, which implements random access with less overhead and reduces random access delay.

In one aspect, a method for grouping a preamble resource is provided, which is applied to a side of a network device, and the method includes:

The network device sends, to the terminal device, a preamble resource packet and configuration information of the preamble resource packet; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes an information type and/or a location of the preamble resource packet The configuration value of the information type;

The network device receives a preamble sent by the terminal device, and the preamble sent by the terminal device belongs to the set of the preamble.

The preamble resource group and the configuration information of the preamble resource group may be carried by using any message between the network device and the terminal device, for example, random access information or system information. The above random access information refers to information used by the network device to send to the terminal device for random access, and the information may be carried by existing signaling or message bearer, or may be carried by a newly defined message or signaling; The configuration information of the packet is used to indicate that the preamble resource packet satisfies the information, and may be only the information type or the configuration value of the information type, or both. On the terminal device side, the terminal device selects the preamble in the corresponding preamble resource packet and sends it to the network device, if it determines that it meets the configuration information in a certain preamble resource packet. Therefore, after receiving the preamble, the network device determines that the terminal device conforms to the configuration information specified in the corresponding preamble resource group. In addition, it can be understood that there may be a plurality of preamble resource packets, usually at least two, and the specific number of the preamble resource packets may be determined as needed, which is not limited by the embodiment of the present application.

In the present application, the terminal device selects a preamble in the preamble resource packet to be sent to the network device, that is, the preamble sent by the terminal device is that the terminal device meets the configuration information of the preamble resource packet. In case the terminal device complies with the configuration information of the preamble resource grouping.

In an optional implementation manner, the foregoing preamble resource group and the configuration information thereof are carried by using system information, or a system information block, and the solution is compatible with the existing random access procedure, and is reduced. The possible modification to the random access procedure is as follows: the network device sends the preamble resource packet and the configuration information of the preamble resource packet to the terminal device, including:

The network device sends system information to the terminal device; the system information carries configuration information of the preamble resource packet and the preamble resource packet.

In an optional implementation manner, an implementation scheme for generating a random access response by the network device is also provided, where the method further includes:

Determining, by the network device, information on the terminal device side that the information in the preamble resource packet is consistent; generating a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet, to the terminal device Sending the random access response.

In this embodiment, the random access response is determined according to the preamble resource group in which the preamble is received. Since the preamble resource group has been determined, it may be determined that the terminal device meets the configuration information of the preamble resource group where the preamble is located, and thus Based on this, a more targeted random access response is generated.

In an optional implementation manner, the terminal device may send one or more preambles, and the specific implementation manner of returning the random access response is provided on the network device side according to the embodiment of the present application, as follows: The preamble sent by the network device to receive the terminal device includes:

Receiving, by the network device, one preamble sent by the terminal device;

Generating a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet, and sending the random access response to the terminal device includes:

Generating a random access response according to the configuration information of the preamble and the preamble resource group of the one preamble, and transmitting the random access to the terminal device on one beam response;

Or the receiving, by the network device, the preamble sent by the terminal device includes:

Receiving, by the network device, at least i preambles sent by the terminal device, where the i is greater than or equal to 1;

Generating, according to configuration information of the at least i preambles and the preamble resource group of the at least i preambles, the j random access responses, where the value is greater than or equal to 1 and less than or equal to i;

In the case where j is 1, the j random access responses are transmitted on one downlink beam; and in the case where j is greater than 1 and less than or equal to i, L random transmissions are transmitted on K beams An access response, the L is greater than or equal to the K, and the L random access responses belong to a random access response in the j random access responses, and the K is less than or equal to the j.

In this embodiment, the terminal device may send multiple or one preambles on multiple beams, and after receiving multiple preambles, the network device may generate as many random access responses as the preamble, and generate a random access response. All or part of the generated random access response may be sent to the terminal device on multiple or one beam, and the terminal device may complete random access according to any random access response received.

In an optional implementation, a specific example of a set of preambles is further provided, where the set of preambles includes:

Orthogonal signals formed over time, frequency, and preamble sequences, or quasi-orthogonal signals formed over time, frequency, and preamble sequences, or low autocorrelation and low formed over time, frequency, and preamble sequences Cross-correlated signals.

It can be understood that the preamble of random access can be obtained by any means known to those skilled in the art, and the set of preambles can be arbitrarily combined according to needs. The manner of several combinations given above should not be understood as implementing the present application. The uniqueness of the example is limited.

In an optional implementation manner, a specific example of the information type of the preamble resource group is further provided, where the information type of the preamble resource group includes:

The maximum bandwidth, the random access procedure category, the waveform used for uplink transmission data, the received signal strength, the information carried in the random access response, and at least one of the setting functions.

It can be understood that the information type of the preamble resource group is used to configure the information of the preamble resource group, and the information may be configured according to the information required by the network device side, or may be transmitted to the network device side according to the information of the terminal device side. It is determined that such information should not be limited to the above examples, and thus the above examples should not be construed as an exhaustive list of information types of preamble resource packets. The above setting function refers to a special type of function information with respect to the maximum bandwidth, the random access procedure category, the waveform used for uplink transmission data, the received signal strength, and the information carried in the random access response, for example: Request information on demand (on demand).

In an optional implementation manner, the configuration information of the preamble resource group and the preamble resource group may be pre-configured or dynamically adjusted. If dynamically adjusted, the information may be specifically as follows: Before sending the configuration information of the preamble resource group and the preamble resource group, the method further includes:

And configuring, by the network device, configuration information of the preamble resource packet and the preamble resource packet in a radio resource control layer, where the network device needs configuration information of the preamble resource packet of the terminal device.

In a second aspect, a preamble selection method is provided, which is applied to one side of a terminal device, and the method includes:

The terminal device receives a preamble resource packet from the network device and configuration information of the preamble resource packet; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes an information type of the preamble resource packet and/or a configuration value of the information type;

And if the terminal device meets the configuration information of the preamble resource group, selecting a preamble from the set of preambles, and sending the selected preamble to the network device.

The implementation scheme of the terminal device side provided by the embodiment of the present application has a corresponding relationship with the solution of the network device side. Therefore, the implementation scheme of the network device side may be referred to, and details are not described herein again.

In an optional implementation manner, the set of the preambles includes:

In an optional implementation manner, the information type of the preamble resource group includes:

In an optional implementation manner, the selecting a preamble from the set of preambles, and sending the selected preamble to the network device includes: selecting one preamble from the set of preambles, and selecting the selected one The preamble is sent to the network device; the method further includes: receiving, by using one beam, one random access response sent by the network device;

Or the selecting a preamble from the set of preambles, and sending the selected preamble to the network device comprises: selecting i preambles from the set of preambles, and sending the selected i preambles to the network device The method further includes receiving L random access responses on the K beams, the L being greater than or equal to the K, and the L and the K are both less than or equal to the i.

In a third aspect, a network device is also provided, including:

An information sending unit, configured to send a preamble resource packet and configuration information of the preamble resource packet to a terminal device; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes an information type of the preamble resource packet And/or configuration values of the information type;

The preamble receiving unit is configured to receive a preamble sent by the terminal device, where the preamble sent by the terminal device belongs to the set of the preamble.

In an optional implementation manner, the information sending unit is configured to send system information to the terminal device, where the system information carries configuration information of the preamble resource group and the preamble resource group.

In an optional implementation manner, the network device further includes:

An information determining unit, configured to determine that information on the terminal device side meets information in the preamble resource group;

And a response generating unit, configured to generate a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet;

And a response sending unit, configured to send the random access response to the terminal device.

In an optional implementation manner, the preamble receiving unit is configured to receive one preamble sent by the terminal device;

The response generating unit is configured to generate one random access response according to the configuration information of the one preamble sent by the terminal device and the preamble resource group where the one preamble is located;

The response sending unit is configured to send the one random access response to the terminal device on one beam;

or,

The preamble receiving unit is configured to receive at least i preambles sent by the terminal device, where the i is greater than or equal to 1;

The response generating unit is configured to generate, according to configuration information of the at least i preambles and the preamble resource packets of the at least i preambles, the j random access responses, where the value is greater than or equal to 1 and less than Or equal to i;

The response sending unit is configured to send the j random access responses on one downlink beam when the j is 1, and in a case where j is greater than 1 and less than or equal to i, Transmitting L random access responses on the K beams, the L being greater than or equal to the K, the L random access responses belonging to a random access response in the j random access responses, where the K is smaller than Or equal to the j.

In an optional implementation manner, the set of the preambles includes:

In an optional implementation manner, the network device further includes:

And an information configuration unit, configured to configure configuration information of the preamble resource group and the preamble resource group at a radio resource control layer, where the network device needs configuration information of the preamble resource group of the terminal device.

In a fourth aspect, a terminal device is provided, including:

An information receiving unit, configured to receive, by the terminal device, a preamble resource packet from the network device and configuration information of the preamble resource packet; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes the preamble resource group Type of information and/or configuration value of the type of information;

a preamble selection unit, configured to select a preamble from the set of preambles if the terminal device meets configuration information of the preamble resource group;

And a preamble sending unit, configured to send the selected preamble to the network device.

In an optional implementation manner, the set of the preambles includes:

In an optional implementation manner, the terminal device further includes: a response receiving unit;

The preamble selection unit is configured to select one preamble from the set of preambles;

The preamble sending unit is configured to send the selected one preamble to the network device; the terminal device further includes:

The response receiving unit is configured to receive, by using one beam, one random access response sent by the network device;

or,

The preamble selection unit is configured to select i preambles from the set of preambles;

The preamble sending unit is configured to send the selected i preambles to the network device; the terminal device further includes:

The response receiving unit is configured to receive L random access responses on the K beams, where the L is greater than or equal to the K, and the L and the K are both less than or equal to the i.

In a fifth aspect, a network device is provided, comprising: a transceiver communicably connected, a processor, and a memory; wherein the memory stores instructions that, when operating on the network device, cause The network device performs the method of any of the above aspects.

A sixth aspect, further provides a terminal device, comprising: a transceiver communicably connected, a processor, and a memory; wherein the memory stores instructions, when it is run on the terminal device, The terminal device performs the method of any of the above two aspects.

Yet another aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.

Yet another aspect of the present application provides a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the methods described in the above aspects.

In the embodiment of the present application, in the case that the terminal device is randomly accessed, for the network device, the information of the terminal device can be obtained earlier, which is more advantageous for the network device to perform efficient scheduling; The preamble returned by the terminal device can determine the configuration information corresponding to the preamble resource group to which the preamble belongs to the capability information of the terminal device; therefore, the information of the terminal device can be quickly obtained, and the random access delay is reduced with less overhead. .

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings to be used in the embodiments of the present application or the background art will be described below.

1 is a schematic structural diagram of a system according to an embodiment of the present application;

2 is a schematic flow chart of a method according to an embodiment of the present application;

3 is a schematic flow chart of a method according to an embodiment of the present application;

4a is a schematic structural diagram of a preamble resource grouping according to an embodiment of the present application;

4b is a schematic structural diagram of a preamble resource grouping according to an embodiment of the present application;

4c is a schematic structural diagram of a preamble resource grouping according to an embodiment of the present application;

FIG. 5a is a schematic diagram of a preamble structure of an embodiment of the present application; FIG.

FIG. 5b is a schematic diagram of a preamble structure of an embodiment of the present application; FIG.

FIG. 5c is a schematic diagram of a preamble structure of an embodiment of the present application; FIG.

6a is a schematic diagram of downlink system information in the embodiment of the present application;

FIG. 6b is a schematic diagram of a UE transmitting a random access signal according to an embodiment of the present application;

6c is a schematic diagram of a base station response according to an embodiment of the present application;

6d is a schematic diagram of downlink system information in the embodiment of the present application;

6e is a schematic diagram of a UE transmitting a random access signal according to an embodiment of the present application;

6f is a schematic diagram of a base station response according to an embodiment of the present application;

6g is a schematic structural diagram of a system structure beam scanning according to an embodiment of the present application;

6h is a schematic structural diagram of a system according to an embodiment of the present application;

7 is a schematic structural diagram of a network device according to an embodiment of the present application;

8 is a schematic structural diagram of a network device according to an embodiment of the present application;

9 is a schematic structural diagram of a network device according to an embodiment of the present application;

10 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

11 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

12 is a schematic structural diagram of an apparatus according to an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

detailed description

The embodiments of the present application are described below in conjunction with the accompanying drawings in the embodiments of the present application.

Before starting the specific introduction of the embodiment of the present application, it is required to be stated that the terminal device in the embodiment of the present application may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, and a user terminal. , terminal, wireless communication device, user equipment, user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks, and the like.

The network device in the implementation of the present application is a network side device working in a frequency band above 6 GHz (including 6 GHz), for example, a wireless-fidelity (Wi-Fi) access point, a base station of a next-generation communication, such as 5G. gNB or small station, micro station, Transmit Receive Point (TRP), can also be a relay station, access point, in-vehicle device, wearable device, etc. working in the high frequency band.

Embodiments of the present application can be applied to wireless networks of various technologies. A wireless access network may include different network elements in different systems. For example, the network elements of the radio access network in LTE and LTE-A (LTE Advanced) include an evolved base station (eNodeB, eNB), a wireless local area network (WLAN)/wireless fidelity (Wi-Fi) network. The element includes an access point (AP) and the like. Other wireless networks may also use a solution similar to the embodiment of the present application, but the related modules in the base station system may be different, and the embodiment of the present application is not limited.

It should also be understood that, in the embodiment of the present application, the terminal device includes but is not limited to a user equipment (UE), a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), and a mobile phone (handset). And a portable device, the terminal device can communicate with one or more core networks via a Radio Access Network (RAN). For example, the terminal device can be a mobile phone (or “cellular”). The telephone device, the computer having the wireless communication function, and the like, the terminal device may also be a mobile device that is portable, pocket-sized, handheld, built-in, or in-vehicle.

In the following embodiments, the terminal device is the UE, and the network device is the base station.

The embodiments of the present application can be applied to any wireless network system shown in FIG. 1. In Figure 1, multiple UEs complete uplink access to the base station through random access. The circular area shown in Fig. 1 is a cell, and the cell radius is shown schematically.

Hardware involved in the UE side: a generating module for transmitting signals, and the module may be a Field Programmable Gate Array (FPGA) module. The generating module of the sending signal selects a transmitting beam according to the random access channel (RACH) information and the capability information of the UE, and the capability information may be whether the transmitting beam and the receiving beam of the UE have consistency. In LTE, the selected preamble is modulated at the time and frequency locations specified by the base station.

Hardware involved in the base station side: The base station forms configuration information about the preamble resource packet according to the information that needs to be acquired, and then broadcasts to the UE. The signal detection module of the base station forms a random access response according to the packet of the RACH information about the preamble resource and the detection result of the signal received from the UE. The signal detection module can also be an FPGA module.

The random access process is shown in Figure 2. The wireless network system shown in Figure 1 can be referred to together, including:

201: The base station sends the downlink RACH information to the UE, and carries the preamble configuration information in the RACH information.

The above preamble is also referred to as a random access preamble or a random access preamble.

202: The UE sends the Msg1 to the base station, where the Msg1 is also referred to as a random access request, where the preamble selected by the UE is used to initiate random access.

203: The base station sends Msg2 to the UE, where the Msg2 is used for a random access response.

204: The UE sends an Msg3 to the base station, where the Msg3 carries information related to the contention resolution, for example, a Common Control Channel (CCCH) Service Data Unit (SDU) related to the UE's contention resolution identifier;

205: The base station sends Msg4 to the UE, where the Msg4 informs the competition result.

206: After receiving the Msg4 and obtaining the access resource, the UE performs uplink data transmission.

The above process is a process of competitive random access. The non-competitive random access process does not include the steps of 204 and 205 above, and details are not described herein again.

The embodiments of the present application mainly relate to the improvement of 201 to 203 above, and the subsequent embodiments will be exemplified.

In the embodiment of the present application, the process of random access is as shown in FIG. 3, and the specific process is as follows:

301: The base station sends the RACH information to the UE in the downlink.

The RACH information may be carried by a System Information Block (SIB), or transmitted by a control channel, or transmitted by a data channel. The RACH information refers to the information used for random access, and the name itself is not uniquely defined in the embodiment of the present application.

Specifically, as shown in FIG. 4a, 4b, or 4c, the RACH information may include: a preamble resource group, and the information of the preamble resource group may include the following three types: a preamble set, an information type, and configuration information; among the three types of information, the preamble set is usually The necessary information, information type and configuration information can be either one or both, as follows:

In Fig. 4a, three types of information are combined, and in Fig. 4b, both the preamble set and the information type are combined, and in Fig. 4c, the preamble set and the configuration information are combined.

As shown in Figure 4b, the configuration information is missing relative to Figure 4a, since in some cases certain information types may have no configuration values, ie only indicate a certain function, such as on-demand system information (System) Information, SI), only limits the request for such system information, ie functions, so there can be no configuration values.

As shown in FIG. 4c, the information type is missing relative to FIG. 4a, because in some cases, there may be no information type by default, for example, four preamble resource packets, and the first three packets have already indicated the RACH information as shown in FIG. 4a. The remaining group may only need to indicate the configuration information, and the information type of the preamble resource group in the first three preamble resource packets is used.

For some special cases, the information of the preamble set may not be needed. For example, in LTE, 64 preambles are configured in one network, and in the case where the preamble sets in other preamble resource packets have been determined, the remaining one of the predecessor resources is grouped. The complement of the preamble set has been determined, so the network device may not be required to inform the terminal device that the preambles in the remaining one of the preamble resource packets are specifically those preambles, and thus the information of the preamble set may not be available.

The above three types of information are described as follows:

1. Preamble Set: The preamble set is a set of preambles that are assigned to corresponding preamble resource packets; it can be understood how many preamble resources are grouped and how many preamble sets there are. The preamble is information for random access.

The preamble set can generally include multiple preambles, which are orthogonal, quasi-orthogonal signals formed over three resource dimensions of time, frequency, and preamble sequence. For example, in Figure 5a, there are two preamble sets for each of the two subbands (subband 1 and subband 2) and two times (t1 and t2), for a total of four preamble sets. Each preamble set contains a sequence of multiple preambles, which can be: 70 or other numbers.

For another example, the preamble is a Zadoff-Chu sequence located at one or more time and frequency positions, and the sequence at the time and frequency corresponds to a resource pattern or a cover code; as shown in FIG. 5b, the resource is shown in FIG. 5b. The pattern, including the preamble sequence 1 to sequence 4, is distributed over time (t1 to t4) and frequency (f1 to f4); Fig. 5c is a mask representation, mask ([+1, -1, +1, -1) ]), distributed over time (t1 to t4) and frequency f1.

2. Information type: The information type is the type of information corresponding to the foregoing preamble set. This information is information indicated by the preamble resource grouping.

The information type may be: a maximum bandwidth of the UE, a random access procedure type selected by the UE, a waveform used by the UE to transmit data, a UE received signal strength, and some special signaling requests; the information type may have one or more types. One. The waveform used by the UE to transmit data in the uplink may be: single carrier or multiple carriers. The special signaling request may be specified according to the information of the UE required by the base station side, for example, an on-demand SI request, etc., and is not limited herein.

3. Configuration information: The configuration information is a configuration value of the foregoing information type, and is used to distinguish specific information, that is, the specific value of the foregoing information type. The configuration value of the information type can be a single value, or a combination of multiple values.

Specifically, the base station may configure the RACH information in the Radio Resource Control (RRC) layer as follows:

In the following examples, the preamblesGroupAConfig corresponds to the configuration information of the first preamble resource group, and the preamblesGroupBConfig corresponds to the configuration information of the second preamble resource group, and similarly, for more preamble resources. The messageGroupA-Indication1 corresponds to the configuration of the first type of information in the first preamble resource group, and the messageGroupA-Indication2 corresponds to the configuration of the second type of information in the first preamble resource group. Similarly, more information types and more can be set. The grouping of leading resources. Among them, IndicationType refers to the type of information. IndicationInfo refers to the configuration value of the corresponding information type. Specific examples are as follows:

302: After obtaining the RACH information, the UE selects a preamble in the corresponding preamble resource packet according to the information on the UE side, and then sends the preamble to the base station.

Specifically, the UE may be configured by the Medium Access Control (MAC) layer according to the RACH information, the preamble resource group, the information type corresponding to the preamble resource group, the specific configuration value of the information type, and the UE side needs to pass random access. The preamble transmits information to the base station, selects a preamble within the preamble resource packet, and then transmits the selected preamble to the base station.

303: After receiving the preamble sent by the UE, the base station determines the preamble resource packet corresponding to the preamble, and then determines that the related information of the UE matches the information of the preamble resource group, and then generates a random access response according to the random access response, and sends the random access response to UE.

The information of the preamble resource group is determined based on the information of the preamble resource group configured in the previous RACH information, and details are not described herein again.

304: After receiving the random access response, the UE completes the random access according to the random access response.

The following gives an example of a more example RACH information:

1. The RACH information may inform the base station that the transmit/receive beams have consistency; there are two preamble resource packets in total, and the two preamble resource packets are the preamble resource packet 1 and the preamble resource packet 2, respectively. Each preamble resource grouping information includes an information type, and the information type has two values. This type of information corresponds to a type of information.

Consistency means that for a device, if the transmit beam and the receive beam use the same parameters and the receive and transmit effects are close, it is considered to have transmit/receive beam consistency, and vice versa. As shown in FIG. 6a to FIG. 6c, the downlink beam Bi used by the base station corresponds to the uplink Bi', i=1, 2, 3, 4, FIG. 6a is the downlink system information of the base station, and FIG. 6b is the transmission random access signal. 6c sends a random access response for the base station.

The preamble resource group 1 and the preamble resource group 2 in this example are respectively as follows:

1. The information type of the preamble resource group 1 is as follows: whether the UE sends a beam scan, and the configuration value is 0. A value of 0 indicates that the UE does not have a beam scan, that is, the UE only transmits one beam when randomly accessing.

Then, the information type of the preamble resource packet 1 and the configuration value of the preamble resource packet 1 in the RACH information may be used to indicate that the current UE is uplinked by only one beam.

Based on the above indication, the determined content may be, for example, that the UE transmit/receive beam has consistency, the UE's receive beam bi' corresponds to the UE transmit beam bi, the UE has learned the UE receive beam and the UE transmit beam, and the random that indicates the subsequent base station return. The access response does not need to include at least one of a time at which the base station receives the beam and a Reference Signal Received Power (RSRP).

For example, in FIG. 6a to FIG. 6c, it is assumed that the UE1 transmission/reception beam has consistency; or, the reception beam bi' of the UE1 corresponds to the UE1 transmission beam bi; or, the UE1 has learned the UE1 reception beam and the UE transmission beam, or indicates The random access response returned by the subsequent base station does not need to include the time of the beam and the RSRP; then, the UE1 selects a preamble from the preamble resource packet 1, and uses the beam b1 to the base station at the time when the base station transmits the beam B3 corresponding to the base station corresponding to the beam B3. Send a random access signal.

2. The information type of the preamble resource group 2 is assumed to be: whether the UE sends a beam scan, and the configuration value is 1. The preamble sequence in the preamble resource group 1 is used to indicate that the current UE uses multiple beams for uplink transmission.

Based on the above indication, the determined content may be, for example, the UE2 transmit/receive beam does not have consistency, the UE does not know the UE transmit beam, and the random access response indicating that the subsequent base station returns needs to include at least the time of the base station receiving beam and the RSRP. One.

For example, in FIG. 6a to FIG. 6c, it is assumed that the UE2 transmission/reception beam does not have consistency, or that UE2 does not know the UE2 transmission beam, or that the random access response returned by the subsequent base station needs to include the time and RSRP of the base station reception beam. Then, UE2 selects one preamble or two preambles from the preamble resource group 2, and sends a random access signal to the base station by using the beam c1 and the beam c2 respectively when the base station transmits the beam B3' corresponding to the base station corresponding to the beam B3. In this example, the two preambles sent separately may be the same or different.

Based on the above example, on the base station side, in the case that it is determined that the received preamble belongs to the preamble in the preamble resource group 1, the base station sends a random access response to the UE on the transmit beam B3, and the random access response information At least: the preamble number, the uplink scheduling information, and the time advance (TA). In the case that it is determined that the received preamble belongs to the preamble in the preamble resource group 2, the base station sends a random access response to the UE on the transmit beam B3, and the information of the random access response is in addition to the foregoing preamble number, uplink scheduling information, and In addition to the TA, the time at which the base station receives the preamble signal and the quality of the preamble signal may also be included. In the case where it is determined that the received preamble belongs to the preamble in the preamble resource packet 2, the preamble may be detected within both preamble signal receiving times, in which case the base station may generate 2 random access responses. If two random access responses are generated, the base station may select one of the downlink transmissions, or two simultaneous downlink transmissions, or downlink transmissions at two times.

2. The RACH information may inform the base station that the transmit/receive beams are not consistent. There are 2N preamble resource packets in total, and each preamble resource packet contains two information types. As shown in FIG. 6d to FIG. 6f, FIG. 6d is a downlink system information of a base station, FIG. 6e is a random access signal, and FIG. 6f is a random access response sent by a base station.

As shown in FIG. 6d to FIG. 6f, the downlink beam Bi used by the base station corresponds to the uplink Bi', i=1, 2, 3, 4.

It is assumed that, among the information types of the respective preamble resource packets, the first type of information is whether the UE sends a beam scan, and the type of information has two values; the second type of information is information that the base station transmits the beam (for example, the time of transmitting the beam) Or, identification (Identity, ID), or downlink synchronization information number, etc.), this type of information can have N values.

As shown in FIG. 6d to FIG. 6f, when the second type of information corresponds to the base station transmitting beam, when N=4, it means that each value corresponds to one base station transmitting beam; when N<4, it means that some is taken. The value may correspond to a plurality of base station transmit beams. The following takes an example of N=2 as an example.

In the case where the configuration value of the first type of information is 0, it may be indicated that the preamble sequence in the packet indicates the following information: the current UE transmits with only one beam, the receiving beam bi' of the UE corresponds to the transmitting beam bi of the UE, and the UE It has been known that the UE receives the beam and the UE transmits the beam, and indicates that the random access response returned by the subsequent base station does not need to include at least one of the time of the beam and the RSRP.

If the configuration value of the first type of information is 1, the preamble sequence in the packet may indicate that the current UE is transmitting on multiple UE transmit beams, the UE does not know the UE transmit beam, and indicates that the subsequent base station returns. The random access response needs to include at least one of the time of the beam and the RSRP.

In the case that the configuration value of the second type of information is {B1, B2}, it may be indicated that the preamble sequence in the packet indicates that the best transmit beam of the base station is B1 or B2 for the current UE, or The base station returns a random access response on the base station transmit beams B1 and B2.

In the case where the configuration value of the second type of information is {B3, B4}, it may be indicated that the preamble sequence in the packet indicates the following information: for the current UE, the best transmit beam of the base station is B3 or B4, or an indication The base station returns a random access response on the base station transmit beams B3 and B4.

In this example, the RACH information includes the preamble resource groups 1 to 4, and the corresponding information types and their configuration values are respectively as follows: Assume that, among the information types of the preamble resource group 1, the configuration value of the first type of information type is 0, and the second type The configuration value of the information type is {B1, B2}; in the information type of the preamble resource group 2, the configuration value of the first type of information type is 0, the configuration value of the second type of information type is {B3, B4}; the preamble resource grouping Among the information types of 3, the configuration value of the first type of information type is 1, and the configuration value of the second type of information type is {B1, B2}; among the information types of the preamble resource group 4, the configuration value of the first type of information type is 1. The configuration value of the second type of information type is {B3, B4}. In this embodiment, the preamble resource packet 4 may lack the information type, and only the configuration values of the two information types need to be specified.

Based on the specific example of the above RACH information, an example of the UE selecting the preamble in FIG. 6d to FIG. 6f is as follows:

It is assumed that the UE1 transmission/reception beam has consistency, or that UE1 has learned that UE1 transmits beam b1, or UE1 does not need the time and RSRP of the beam included in the random access response returned by the base station; then UE1 selects one from the preamble resource group 2 or The two preambles use the UE1 transmit beam b1 to transmit a random access signal to the base station within the base station receive beams B3' and B4'. In this example, the preamble sent by UE1 in the base station receive beams B3' and B4' may be the same or different.

It is assumed that the UE2 transmission/reception beam does not have consistency, or that UE2 does not know the UE2 transmission beam, or that UE2 needs the time and RSRP of the beam included in the random access response returned by the base station; then UE2 selects 1~ from the preamble resource group 4. 4 preambles, first transmitting the beam c1 using the UE2, transmitting a random access signal to the base station in the base station receiving beams B1' and B2'; then transmitting the beam c2 using the UE2, in the base station receiving beams B1' and B2', to the base station Send a random access signal. In this example, the four preambles sent separately may be the same or different.

Based on the above examples of UE1 and UE2, the pre-leading processing is received on the base station side, as follows:

On the base station side, in the case of determining that the received preamble belongs to the preamble in the preamble resource group 2, the base station sends a response message to the UE on the base station transmitting beams B3 and B4, and the response information may include: a preamble number and an uplink scheduling information. , TA. Since it is determined that the received preamble belongs to the preamble in the preamble resource packet 2, it is possible to receive the preamble at both preamble reception times, in which case the base station may generate 2 random access responses. If two random access responses are generated, the base station may select one of the downlink transmissions, or two simultaneous downlink transmissions, or two time-sharing downlink transmissions. In this example, the base station sends random access responses in both B3 and B4, and the random access responses sent in the two beams (ie, B3 and B4) may be the same or different. On the UE side, the UE may receive only random access responses in any one of the beams, and may also receive random access responses in the two beams.

On the base station side, in the case that it is determined that the received preamble belongs to the preamble in the preamble resource group 4, the base station sends a response message to the UE on the base station transmitting beams B3 and B4, and the response information is in addition to the foregoing preamble number, uplink scheduling information, and In addition to the TA, the base station may also receive the time and signal quality of the preamble signal. Since it is determined that the received preamble belongs to the preamble in the preamble resource packet 2, it is possible to receive the preamble at the four preamble signal receiving times, in which case the base station may generate multiple (1, 2, 3, 4) random access response, if multiple random access responses are generated, the base station may select one of the downlink transmissions, or multiple (1, 2, 3, 4) simultaneous downlink transmissions. In this example, the base station sends random access responses in both B3 and B4, and the random access responses sent in the two beams (ie, B3 and B4) may be the same or different. On the UE side, the UE may receive only random access responses in any one of the beams, and may also receive random access responses in the two beams.

Based on the foregoing description, the information type of the preamble resource grouping information may also be the maximum bandwidth of the UE, the type of the random access procedure selected by the UE, or the waveform used by the UE to transmit data (such as a single carrier or multiple carriers). ), it can also be the received signal strength of the UE, etc., and will not be repeated here. The information type included in the preamble resource grouping information may be one or more types, and the types of information included in different preamble resource groupings may be different or the same.

Beam scanning is involved in the examples of the foregoing embodiments because, in order to further improve communication quality, the terminal device uses beamforming techniques to generate analog beams in different directions for receiving and transmitting data. Since network devices, such as Transmission Reception Point (TRP) and terminal equipment, use narrower analog beam communications, better communication quality is achieved only when the analog beams used for transmission and reception are aligned. Therefore, it has been determined in the 3GPP RAN1 conference that the Beam Sweeping process is used in the 5G New Radio (NR) to determine the beam pair (transmit beam and receive beam) between the TRP and the terminal, as shown in Figure 6g. Show and monitor multiple beam pairs during communication to improve the robustness of the communication link. In addition, in order to increase the cell coverage capability, one cell of the 5G NR may include multiple TRPs, and each TRP may transmit multiple different analog beams.

Figure 6h is a schematic architectural diagram of an application scenario. The networking architecture shown in FIG. 6h includes a network device 21 and a terminal device 22. The network device 21 communicates with the terminal device 22 using a relatively high frequency millimeter wave band, which is typically a frequency band greater than 6 GHz, for example, 28 GHz, 38 GHz, or an enhanced bandwidth of a data plane covering a smaller area (Enhanceed Band) , E-band) band. The terminal device 22 covered by the network device 21 can communicate with the network device 21 using a frequency band of a relatively high frequency. The network device may include one or more sending and receiving points TRP, wherein the management of the TRP may be performed by the controller.

Based on the foregoing description of the method embodiment, the embodiment of the present application further provides a network device, as shown in FIG. 7, including:

The information sending unit 701 is configured to send the preamble resource packet and the configuration information of the foregoing preamble resource packet to the terminal device, where the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes the information type of the preamble resource packet and/or The configuration value of the above information type;

The preamble receiving unit 702 is configured to receive a preamble sent by the terminal device, and the preamble sent by the terminal device belongs to the set of the preamble.

In an optional implementation manner, the information sending unit 701 is configured to send system information to the terminal device, where the system information carries configuration information of the foregoing preamble resource group and the preamble resource group.

In an optional implementation manner, as shown in FIG. 8, the foregoing network device further includes:

The information determining unit 801 is configured to determine that the information on the terminal device side meets the information in the foregoing preamble resource group;

The response generating unit 802 is configured to generate a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet.

The response sending unit 803 is configured to send the random access response to the terminal device.

In an optional implementation manner, the foregoing preamble receiving unit 702 is configured to receive one preamble sent by the terminal device.

The response generating unit 802 is configured to generate one random access response according to the configuration information of the preamble resource group that is sent by the terminal device and the preamble resource group where the one preamble is located;

The response sending unit 803 is configured to send the one random access response to the terminal device on one beam.

or,

The preamble receiving unit 702 is configured to receive at least i preambles sent by the terminal device, where the i is greater than or equal to 1;

The response generating unit 802 is configured to generate j random access responses according to the configuration information of the at least i preambles and the preamble resource packets of the at least i preambles, where the foregoing is greater than or equal to 1 and less than or equal to i. ;

The response sending unit 803 is configured to send the j random access responses on one downlink beam when the above j is 1, and in the case where the j is greater than 1 and less than or equal to i, in the K beams The L random access responses are sent, and the L is greater than or equal to the K, and the L random access responses belong to the random access response in the j random access responses, and the K is less than or equal to the above j.

In an optional implementation manner, the foregoing set of preambles includes:

In an optional implementation manner, the information type of the foregoing preamble resource group includes:

In an optional implementation manner, as shown in FIG. 9, the foregoing network device further includes:

The information configuration unit 901 is configured to configure the configuration information of the preamble resource packet and the preamble resource packet in the radio resource control layer when the network device needs the configuration information of the preamble resource packet of the terminal device.

Based on the foregoing method embodiment, the embodiment of the present application further provides a terminal device, as shown in FIG. 10, including:

The information receiving unit 1001 is configured to receive, by the terminal device, a preamble resource packet from the network device and configuration information of the foregoing preamble resource packet, where the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes an information type of the preamble resource packet. And/or configuration values of the above information types;

The preamble selection unit 1002 is configured to select a preamble from the set of preambles if the terminal device meets the configuration information of the foregoing preamble resource group;

The preamble sending unit 1003 is configured to send the selected preamble to the network device.

In an optional implementation manner, the foregoing set of preambles includes:

In an optional implementation manner, as shown in FIG. 11, the terminal device further includes: a response receiving unit 1101;

The preamble selection unit 1002 is configured to select one preamble from the set of the preambles;

The foregoing preamble sending unit 1003 is configured to send the selected one preamble to the network device, where the terminal device further includes:

The response receiving unit 1101 is configured to receive, by using one beam, one random access response sent by the network device.

Alternatively, the foregoing preamble selection unit 1002 is configured to select i preambles from the set of preambles;

The foregoing preamble sending unit 1003 is configured to send the selected i preambles to the network device, where the terminal device further includes:

The response receiving unit 1101 is configured to receive L random access responses on the K beams, where the L is greater than or equal to the K, and the L and the K are both less than or equal to the i.

Referring to FIG. 12, FIG. 12 is a device according to an embodiment of the present disclosure. The device may be a network device or a terminal device. The device includes a processor 1201, a memory 1202, and a transceiver 1203. The processor 1201 and the memory are provided. The 1202 and the transceiver 1203 are connected to each other through a bus.

The transceiver 1203 can include a receiver and a transmitter, wherein the receiver is configured to implement the function of receiving data and/or signaling in a method embodiment, and the transmitter is configured to implement the function of transmitting data and/or signaling in the method embodiment.

The memory 1202 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an Erasable Programmable Read Only Memory (EPROM), or A Compact Disc Read-Only Memory (CD-ROM) is used for related instructions and data. The transceiver 1203 is configured to receive and transmit data and signaling.

The processor 1201 may be one or more central processing units (CPUs). In the case that the processor 1201 is a CPU, the CPU may be a single-core CPU or a multi-core CPU for implementing the method. In addition to the functions of the send/receive steps in the example.

In the case where the device is used as a network device, the processor 1201 is configured to read the related instructions and data stored in the memory 1202, and the transceiver 1203 and the memory 1202 implement the foregoing method performed by the network device. The transceiver 1203 can implement the related functions of the information sending unit 701, the preamble receiving unit 702, and the response sending unit 803 in FIG. 7 to FIG. 9 under the control of the processor 1201; and can be implemented by the transmitter and the receiver respectively; The function is implemented by the processor 1201.

In the case where the device is used as a terminal device, the processor 1201 is configured to read the related instructions and data stored in the memory 1202, and the transceiver 1203 and the memory 1202 implement the foregoing method performed by the terminal device. The transceiver 1203 can implement the related functions of the information receiving unit 1001, the preamble transmitting unit 1003, and the response receiving unit 1101 in FIG. 10 to FIG. 11 under the control of the processor 1201; and can be implemented by a transmitter and a receiver, respectively; The function is implemented by the processor 1201.

For a detailed description of the specific functions of the processor 1201 and the transceiver 1203 and the detailed description thereof, refer to the method embodiments and the corresponding device embodiments, and details are not described herein again.

The embodiment of the present application further provides another image display control device. As shown in FIG. 13 , for the convenience of description, only parts related to the embodiment of the present application are shown. For details that are not disclosed, refer to the implementation of the present application. Example method section. The terminal device may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), an in-vehicle computer, and the terminal device is used as a mobile phone as an example:

FIG. 13 is a block diagram showing a partial structure of a mobile phone related to a terminal device provided by an embodiment of the present application. Referring to FIG. 13 , the mobile phone includes: a radio frequency (RF) circuit 1310 , a memory 1320 , an input unit 1330 , a display unit 1340 , a sensor 1350 , an audio circuit 1360 , a wireless fidelity (WiFi) module 1370 , and a processor 1380 . And power supply 1390 and other components. It will be understood by those skilled in the art that the structure of the handset shown in FIG. 13 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different components may be arranged.

The specific components of the mobile phone will be specifically described below with reference to FIG. 13:

The RF circuit 1310 can be used for receiving and transmitting signals during and after the transmission or reception of information, in particular, after receiving the downlink information of the base station, and processing it to the processor 1380; in addition, transmitting the designed uplink data to the base station. Generally, RF circuit 1310 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 1310 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), E-mail, Short Messaging Service (SMS), and the like.

The memory 1320 can be used to store software programs and modules, and the processor 1380 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 1320. The memory 1320 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.). Moreover, memory 1320 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 1330 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset. Specifically, the input unit 1330 may include a touch panel 1331 and other input devices 1332. The touch panel 1331, also referred to as a touch screen, can collect touch operations on or near the user (such as a user using a finger, a stylus, or the like on the touch panel 1331 or near the touch panel 1331. Operation), and drive the corresponding connecting device according to a preset program. Optionally, the touch panel 1331 may include two parts: a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 1380 is provided and can receive commands from the processor 1380 and execute them. In addition, the touch panel 1331 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1331, the input unit 1330 may further include other input devices 1332. Specifically, other input devices 1332 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.

The display unit 1340 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone. The display unit 1340 can include a display panel 1341. Alternatively, the display panel 1341 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch panel 1331 may cover the display panel 1341. After the touch panel 1331 detects a touch operation thereon or nearby, the touch panel 1331 transmits to the processor 1380 to determine the type of the touch event, and then the processor 1380 according to the touch event. The type provides a corresponding visual output on the display panel 1341. Although in FIG. 13 , the touch panel 1331 and the display panel 1341 are used as two independent components to implement the input and input functions of the mobile phone, in some embodiments, the touch panel 1331 and the display panel 1341 may be integrated. Realize the input and output functions of the phone.

The handset can also include at least one type of sensor 1350, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1341 according to the brightness of the ambient light, and the proximity sensor may close the display panel 1341 and/or when the mobile phone moves to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.

An audio circuit 1360, a speaker 1361, and a microphone 1362 can provide an audio interface between the user and the handset. The audio circuit 1360 can transmit the converted electrical data of the received audio data to the speaker 1361, and convert it into a sound signal output by the speaker 1361; on the other hand, the microphone 1362 converts the collected sound signal into an electrical signal, by the audio circuit 1360. After receiving, it is converted into audio data, and then processed by the audio data output processor 1380, sent to, for example, another mobile phone via the RF circuit 1310, or outputted to the memory 1320 for further processing.

WiFi is a short-range wireless transmission technology. The mobile phone can help users to send and receive emails, browse web pages and access streaming media through the WiFi module 1370. It provides users with wireless broadband Internet access. Although FIG. 13 shows the WiFi module 1370, it can be understood that it does not belong to the essential configuration of the mobile phone, and may be omitted as needed within the scope of not changing the essence of the invention.

The processor 1380 is a control center for the handset that connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 1320, and invoking data stored in the memory 1320, The phone's various functions and processing data, so that the overall monitoring of the phone. Optionally, the processor 1380 may include one or more processing units; preferably, the processor 1380 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 1380.

The handset also includes a power source 1390 (such as a battery) that supplies power to the various components. Preferably, the power source can be logically coupled to the processor 1380 through a power management system to manage functions such as charging, discharging, and power management through the power management system.

Although not shown, the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again.

The method flow performed by the terminal device in the foregoing embodiment may be based on the hardware structure provided by the embodiment.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. The skilled person can use different methods for each particular application to implement the described functionality.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of each unit described above may refer to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed network device and terminal device and corresponding methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the above units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.

The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The above computer program product includes one or more computer instructions. When the above computer program instructions are loaded and executed on a computer, the above described processes or functions in accordance with embodiments of the present application are generated in whole or in part. The above computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The above computer instructions may be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be wired from a website site, computer, server or data center (for example, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center. The computer readable storage medium described above can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The above usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Claims

A method for grouping preamble resources, comprising:

The network device sends, to the terminal device, a preamble resource packet and configuration information of the preamble resource packet; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes an information type and/or a location of the preamble resource packet The configuration value of the information type;

The network device receives a preamble sent by the terminal device, and the preamble sent by the terminal device belongs to the set of the preamble.
The method according to claim 1, wherein the network device sends the preamble resource packet and the configuration information of the preamble resource packet to the terminal device, including:

The network device sends system information to the terminal device; the system information carries configuration information of the preamble resource packet and the preamble resource packet.
The method according to claim 1 or 2, wherein the method further comprises:

Determining, by the network device, information on the terminal device side that the information in the preamble resource packet is consistent; generating a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet, to the terminal device Sending the random access response.
The method according to claim 3, wherein the receiving, by the network device, the preamble sent by the terminal device comprises:

Receiving, by the network device, one preamble sent by the terminal device;

Generating a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet, and sending the random access response to the terminal device includes:

Generating a random access response according to the configuration information of the preamble and the preamble resource group of the one preamble, and transmitting the random access to the terminal device on one beam response;

Or the receiving, by the network device, the preamble sent by the terminal device includes:

Receiving, by the network device, at least i preambles sent by the terminal device, where the i is greater than or equal to 1;

Generating a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet, and sending the random access response to the terminal device includes:

Generating, according to configuration information of the at least i preambles and the preamble resource group of the at least i preambles, the j random access responses, where the value is greater than or equal to 1 and less than or equal to i;

In the case where j is 1, the j random access responses are transmitted on one downlink beam; and in the case where j is greater than 1 and less than or equal to i, L random transmissions are transmitted on K beams An access response, the L is greater than or equal to the K, and the L random access responses belong to a random access response in the j random access responses, and the K is less than or equal to the j.
The method according to any one of claims 1 to 4, wherein the set of said preambles comprises:

Orthogonal signals formed over time, frequency, and preamble sequences, or quasi-orthogonal signals formed over time, frequency, and preamble sequences, or low autocorrelation and low formed over time, frequency, and preamble sequences Cross-correlated signals.
The method according to any one of claims 1 to 5, characterized in that the information type of the preamble resource grouping comprises:

The maximum bandwidth, the random access procedure category, the waveform used for uplink transmission data, the received signal strength, the information carried in the random access response, and at least one of the setting functions.
The method according to any one of claims 1 to 6, wherein before the network device sends the preamble resource packet and the configuration information of the preamble resource packet to the terminal device, the method further includes:

And configuring, by the network device, configuration information of the preamble resource packet and the preamble resource packet in a radio resource control layer, where the network device needs configuration information of the preamble resource packet of the terminal device.
A preamble selection method, comprising:

The terminal device receives a preamble resource packet from the network device and configuration information of the preamble resource packet; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes an information type of the preamble resource packet and/or a configuration value of the information type;

And if the terminal device meets the configuration information of the preamble resource group, selecting a preamble from the set of preambles, and sending the selected preamble to the network device.
The method of claim 8 wherein said set of said preambles comprises:

Orthogonal signals formed over time, frequency, and preamble sequences, or quasi-orthogonal signals formed over time, frequency, and preamble sequences, or low autocorrelation and low formed over time, frequency, and preamble sequences Cross-correlated signals.
The method according to claim 8, wherein the information type of the preamble resource grouping comprises:

The maximum bandwidth, the random access procedure category, the waveform used for uplink transmission data, the received signal strength, the information carried in the random access response, and at least one of the setting functions.
A method according to any one of claims 8 to 10, characterized in that

The selecting a preamble from the set of preambles, and sending the selected preamble to the network device includes: selecting one preamble from the set of preambles, and sending the selected one preamble to the network device; The method further includes: receiving, on one beam, one random access response sent by the network device;

Or the selecting a preamble from the set of preambles, and sending the selected preamble to the network device comprises: selecting i preambles from the set of preambles, and sending the selected i preambles to the network device The method further includes receiving L random access responses on the K beams, the L being greater than or equal to the K, and the L and the K are both less than or equal to the i.
A network device, comprising:

An information sending unit, configured to send a preamble resource packet and configuration information of the preamble resource packet to a terminal device; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes an information type of the preamble resource packet And/or configuration values of the information type;

The preamble receiving unit is configured to receive a preamble sent by the terminal device, where the preamble sent by the terminal device belongs to the set of the preamble.
The network device according to claim 12, wherein the information sending unit is configured to send system information to the terminal device; and the system information carries the preamble resource group and the preamble resource group Configuration information.
The network device according to claim 12 or 13, wherein the network device further comprises:

An information determining unit, configured to determine that information on the terminal device side meets information in the preamble resource group;

a response generating unit, configured to generate a random access response according to the preamble sent by the terminal device and the information in the preamble resource packet;

And a response sending unit, configured to send the random access response to the terminal device.
A network device according to claim 14, wherein

The preamble receiving unit is configured to receive one preamble sent by the terminal device;

The response generating unit is configured to generate one random access response according to the configuration information of the one preamble sent by the terminal device and the preamble resource group where the one preamble is located;

The response sending unit is configured to send the one random access response to the terminal device on one beam;

or,

The preamble receiving unit is configured to receive at least i preambles sent by the terminal device, where the i is greater than or equal to 1;

The response generating unit is configured to generate, according to configuration information of the at least i preambles and the preamble resource packets of the at least i preambles, the j random access responses, where the value is greater than or equal to 1 and less than Or equal to i;

The response sending unit is configured to send the j random access responses on one downlink beam when the j is 1, and in a case where j is greater than 1 and less than or equal to i, Transmitting L random access responses on the K beams, the L being greater than or equal to the K, the L random access responses belonging to a random access response in the j random access responses, where the K is smaller than Or equal to the j.
The network device according to any one of claims 12 to 15, wherein the set of the preambles comprises:

Orthogonal signals formed over time, frequency, and preamble sequences, or quasi-orthogonal signals formed over time, frequency, and preamble sequences, or low autocorrelation and low formed over time, frequency, and preamble sequences Cross-correlated signals.
The network device according to any one of claims 12 to 16, wherein the information type of the preamble resource packet includes:

The maximum bandwidth, the random access procedure category, the waveform used for uplink transmission data, the received signal strength, the information carried in the random access response, and at least one of the setting functions.
The network device according to any one of claims 12 to 17, wherein the network device further comprises:

And an information configuration unit, configured to configure configuration information of the preamble resource group and the preamble resource group at a radio resource control layer, where the network device needs configuration information of the preamble resource group of the terminal device.
A terminal device, comprising:

An information receiving unit, configured to receive, by the terminal device, a preamble resource packet from the network device and configuration information of the preamble resource packet; the preamble resource packet is a set of preambles, and the configuration information of the preamble resource packet includes the preamble resource group Type of information and/or configuration value of the type of information;

a preamble selection unit, configured to select a preamble from the set of preambles if the terminal device meets configuration information of the preamble resource group;

And a preamble sending unit, configured to send the selected preamble to the network device.
The terminal device according to claim 19, wherein the set of the preambles comprises:

Orthogonal signals formed over time, frequency, and preamble sequences, or quasi-orthogonal signals formed over time, frequency, and preamble sequences, or low autocorrelation and low formed over time, frequency, and preamble sequences Cross-correlated signals.
The terminal device according to claim 19, wherein the information type of the preamble resource packet comprises:

The maximum bandwidth, the random access procedure category, the waveform used for uplink transmission data, the received signal strength, the information carried in the random access response, and at least one of the setting functions.
The terminal device according to any one of claims 19 to 21, wherein the terminal device further comprises: a response receiving unit;

The preamble selection unit is configured to select one preamble from the set of preambles;

The preamble sending unit is configured to send the selected one preamble to the network device; the terminal device further includes:

The response receiving unit is configured to receive, by using one beam, one random access response sent by the network device;

or,

The preamble selection unit is configured to select i preambles from the set of preambles;

The preamble sending unit is configured to send the selected i preambles to the network device; the terminal device further includes:

The response receiving unit is configured to receive L random access responses on the K beams, where the L is greater than or equal to the K, and the L and the K are both less than or equal to the i.