CN117835426A - Resource allocation method and communication equipment - Google Patents

Abstract

The application relates to a resource allocation method and communication equipment. In the method, an access network device broadcasts a system message comprising a first indication channel, wherein the first indication channel is used for indicating the resource of a common channel of a first cell to which the system message belongs, the first cell and a second cell are cells defined on the same carrier, and initial access BWP of the first cell and the second cell are bandwidths of the carrier; and the access network equipment receives or transmits the public channel of the first cell according to the resources of the public channel corresponding to the first cell. The initial access BWP of the first cell and the second cell are bandwidths of the carrier, so that common channels of the first cell and the second cell are concentrated at two ends of the carrier bandwidth, and non-common channel interception and discontinuity are not caused. Therefore, by adopting the method, the non-public of the first cell and the second cell can be continuous in a larger range, thereby being beneficial to improving the uplink and downlink throughput.

Description

Resource allocation method and communication equipment

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, to a resource allocation method and a communication device.

Background

The synchronization signal and physical broadcast channel block (synchronization signal and PBCH block, SSB) mainly comprises three parts, namely a synchronization signal (primary synchronization signals, PSS), a secondary synchronization signal (secondary synchronization signals, SSS) and a physical broadcast channel (physical broadcast channel, PBCH). From the point of view of the terminal device, at most one SSB can be associated in each serving cell.

The new radio, NR, standard TS38.300 provides a way to support multiple SSB (multiple SSB). As shown in fig. 1, a carrier (carrier) has a plurality of SSBs (4 SSBs are illustrated in fig. 1) transmitted thereon, and SSBs transmitted in different frequency domain locations may have different Physical Cell IDs (PCIs). When the SSB is associated with the remaining minimum SI (remaining minimum SI, RMSI) (SIB 1), the SSB is referred to as a cell defining SSB (CD-SSB). In fig. 1, SSB1 and SSB3 are cell definition SSBs, which define one cell each, and are air interface cell global identifiers (NR cell global identifier, NCGI) =5 and ncgi=6, respectively. SSB2 and SSB4 are non-cell defining SSBs.

The terminal device performs cell search within the bandwidth range of the carrier, if it searches for SSB1 or SSB3, the terminal device may reside in cell ncgi=5 or cell ncgi=6; if it searches for SSB2 or SSB4, the terminal will continue to search for the cell definition SSB.

An important role of multiple SSBs is to define multiple cells on one carrier. However, for the scenario where multiple cells are defined on one carrier, there is no solution yet how the resources of multiple cells are allocated.

Disclosure of Invention

The embodiment of the application provides a resource allocation method and communication equipment.

In a first aspect, an embodiment of the present application provides a method for allocating resources, where the method includes: the access network equipment broadcasts a system message, wherein the system message comprises first indication information, the first indication information is used for indicating resources of a common channel corresponding to a first cell to which the system message belongs, the first cell and a second cell are cells defined on the same carrier, and initial access bandwidth parts BWP of the first cell and the second cell are bandwidths of the same carrier; and the access network equipment receives or transmits the public channel of the first cell according to the resources of the public channel corresponding to the first cell.

In the conventional manner, the initial access BWP of the first cell and the second cell adopt different bandwidths on the carrier, the common channel of the first cell is located at two ends of the initial access BWP of the first cell, and the common channel of the second cell is located at two ends of the initial access BWP of the second cell, so that the common channels of the first cell and the second cell are discretely distributed on the carrier bandwidth, resulting in non-common channel interception and discontinuity. In the above method, a plurality of cells, such as a first cell and a second cell, may be defined on one carrier, where the available bandwidths of the first cell and the second cell are all available bandwidths of the carrier, i.e. the resources of the first cell and the second cell in the frequency domain are the same. Since the initial access BWP of the first cell and the second cell are all bandwidths of the carrier, the common channels of the first cell and the second cell are concentrated at both ends of the carrier bandwidth. Therefore, by adopting the method, the non-common channels of the first cell and the second cell can be continuous in a larger range, thereby being beneficial to improving the uplink and downlink throughput.

In one possible implementation, the common channel comprises a physical random access channel, PRACH; the resources of the common channel indicated by the first indication information include: mapping relation between the synchronization signal and the physical broadcast channel SSB of the first cell and the PRACH of the first cell on resources; the resources of the PRACH corresponding to the first cell in the time domain are different from the resources of the PRACH corresponding to the second cell in the time domain, or the resources of the PRACH corresponding to the first cell in the frequency domain are different from the resources of the PRACH corresponding to the second cell in the frequency domain. By indicating the mapping relation between the SSB and the PRACH in the system message, the terminal equipment can determine the resource of the PRACH according to the mapping relation; in addition, if the PRACH of the first cell is the same as the PRACH of the second cell in frequency domain, the overhead of the common channel on the frequency domain resource can be reduced, and the resources of the non-common channel on the frequency domain can be further increased.

In one possible implementation, the common channel comprises a physical random access channel, PRACH; the resources of the common channel indicated by the first indication information include: resources of the PRACH of the first cell on a code domain; and the resources of the PRACH corresponding to the first cell on the code domain are different from the resources of the PRACH corresponding to the second cell on the code domain. The PRACH of the first cell and the PRACH of the second cell use different code domain resources, so that the PRACH of the first cell and the PRACH of the second cell can use the same frequency domain resources and the same time domain resources, thereby reducing the overhead of a common channel on the frequency domain resources and further increasing the resources of a non-common channel on the frequency domain and the time domain.

In one possible implementation, the common channel comprises a physical random access channel, PRACH; the resources of the common channel indicated by the first indication information include: whether the terminal equipment is allowed to perform random access in the first cell; at most one cell is allowed to perform random access in the first cell and the second cell. In a plurality of cells on the same carrier, not all cells can be randomly accessed, so resources reserved for PRACH can be reduced, resource overhead of random access is saved, transmission resources of service data are increased, and service throughput of access network equipment is increased.

In one possible implementation method, the method further includes: and the access network equipment determines the cell to which the terminal equipment belongs according to the resource of the public channel sent by the terminal equipment. If the first cell and the second cell public channels occupy different frequency domain resources, the access network equipment can determine the cell to which the terminal equipment belongs according to the received frequency domain resources of the public channels; if the first cell and the second cell public channels occupy different time domain resources, the access network equipment can determine the cell to which the terminal equipment belongs according to the received time domain resources of the public channels; if the first cell and the second cell public channels occupy different code domain resources, the access network equipment can determine the cell to which the terminal equipment belongs according to the code domain resources of the received public channels.

In one possible implementation, the common channel includes one or more of the following channels: common physical uplink control channel common PUCCH, common physical uplink shared channel common PUSCH, common physical downlink control channel common PDCCH, common physical downlink shared channel common PDSCH; the resources of the common channel corresponding to the first cell and the resources of the common channel corresponding to the second cell are partially overlapped or completely overlapped on the frequency domain; or, the resource of the common channel corresponding to the first cell and the resource of the common channel corresponding to the second cell have no overlapping part in the frequency domain. If the resources of the first cell public channel and the second cell public channel are overlapped in the frequency domain, the overhead of the public channel in the frequency domain resources can be reduced, and the resources of the non-public channel in the frequency domain can be further increased.

In one possible implementation method, the common channel includes a downlink common channel, and the resources of the downlink common channel include: downlink bandwidth part BWP, and/or downlink control resource set CORESET; the downlink BWP corresponding to the first cell and the downlink BWP corresponding to the second cell have the same resource in the frequency domain; and the downlink CORESET corresponding to the first cell and the downlink CORESET corresponding to the second cell have the same resource in the frequency domain. The downlink BWP/downlink CORESET of the first cell and the second cell overlap in the frequency domain, so that the overhead of the common channel in the frequency domain resource can be reduced, and the resource of the non-common channel in the frequency domain can be further increased.

In one possible implementation method, the resource pools in the frequency domain of the non-common channels corresponding to the first cell and the second cell are completely overlapped or partially overlapped. Optionally, the resource pool of the non-common channels of the first cell and the second cell may be bandwidths other than the common channel in the carrier bandwidth in the frequency domain.

In one possible implementation method, the resources of the physical uplink control channel PUCCH allocated by the access network device to the terminal device of the first cell are different from the PUCCH resources allocated to the terminal device of the second cell; the access network device allocates PUCCH resources for the first terminal device of the first cell differently from PUCCH resources allocated for the second terminal device of the first cell. The access network device may allocate different PUCCH resources (including time domain or frequency domain) to different terminal devices, so as to avoid collision when the terminal devices transmit the PUCCH.

In one possible implementation method, the resources of the physical downlink control channel PDCCH allocated by the access network device to the terminal device of the first cell are different from the PDCCH resources allocated to the terminal device of the second cell; the access network device allocates a different resource to the PDCCH of the first terminal device of the first cell from the PDCCH resource allocated to the second terminal device of the first cell. The access network device may allocate different PDCCH resources (including time domain or frequency domain) to different terminal devices, so as to transmit the PDCCH to the different terminal devices through the different resources.

In a second aspect, embodiments of the present application provide a communication device comprising modules/units performing the method of the first aspect and any one of the possible implementations of the first aspect. These modules/units may be implemented by hardware, or may be implemented by hardware executing corresponding software.

The communication device may include, for example, a transceiver module and a processing module. Wherein, the processing module is used for executing through the transceiver module: broadcasting a system message, wherein the system message comprises first indication information, the first indication information is used for indicating resources of a common channel corresponding to a first cell to which the system message belongs, the first cell and a second cell are cells defined on the same carrier, and initial access bandwidth parts BWP of the first cell and the second cell are bandwidths of the same carrier; and receiving or transmitting the public channel of the first cell according to the resources of the public channel corresponding to the first cell.

In a third aspect, an embodiment of the present application provides a communication apparatus, including: a processor, and a memory and a communication interface coupled to the processor, respectively; the communication interface is used for communicating with other devices; the processor is configured to execute instructions or programs in the memory, and perform the method according to the first aspect and any one of possible implementation manners of the first aspect through the communication interface.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein computer-readable instructions that, when executed on a computer, cause a method as described in the first aspect and any one of the possible implementations of the first aspect to be performed.

In a fifth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the method according to any one of the first to sixth aspects and any one of the possible implementations to be performed.

Drawings

FIG. 1 is a diagram of defining transmission of multiple SSBs on a carrier;

fig. 2 is a schematic diagram of cell common channel resources;

fig. 3 is a schematic diagram of a communication system architecture according to an embodiment of the present application;

fig. 4 is a flow chart of a resource allocation method according to an embodiment of the present application;

fig. 5 is a schematic view of PRACH resources provided in an embodiment of the present application;

fig. 6 is a schematic diagram of complete overlapping of common channel frequency domain resources according to an embodiment of the present application;

fig. 7 is a schematic diagram of common channel frequency domain resource non-overlapping according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a centralized resource management mode according to an embodiment of the present application;

Fig. 9 is a schematic diagram of a single cell resource management mode according to an embodiment of the present application;

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

fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

As shown in fig. 1, a plurality of SSBs are defined on one carrier, so that a plurality of cells can be defined on one carrier. In the example shown in fig. 1, one carrier may be divided into 4 bandwidths, bandwidth 1, bandwidth 2, bandwidth 3, and bandwidth 4, respectively; the access network device sends SSB1 on bandwidth 1, SSB2 on bandwidth 2, SSB3 on bandwidth 3, SSB4 on bandwidth 4. Wherein SSB1 and SSB3 are cell-defining SSBs, which define a cell, ncgi=5 and ncgi=6, respectively, and SSB2 and SSB4 are non-cell-defining SSBs. The available bandwidths of the cell ncgi=5 and the cell ncgi=6 are each bandwidth 1 to bandwidth 4. Since the access network device sends SSB1 at bandwidth 1, the BWP corresponding to bandwidth 1 may be the initial access BWP of cell ncgi=5; the access network device sends SSB2 at bandwidth 3, then the BWP corresponding to bandwidth 3 may be the initial access BWP of cell ncgi=6. A User Equipment (UE) 1 and a UE2 perform random access through SSB1, and then serving cells of the UE1 and the UE2 are cells ncgi=5, and BWP corresponding to bandwidth 1 is initial access BWP of the UE1 and the UE 2; after the UE1 completes random access, the access network device allocates a proprietary BWP1 and a proprietary BWP2 for the UE1, where the proprietary BWP1 of the UE1 includes BWP corresponding to bandwidth 1, bandwidth 2, and bandwidth 3, and the proprietary BWP2 of the UE1 includes BWP corresponding to bandwidth 4; after the UE2 completes the random access, the access network device allocates a proprietary BWP1 to the UE2, where the proprietary BWP1 of the UE2 includes a bandwidth 1 and a BWP corresponding to the bandwidth 2. UE3 performs random access through SSB3, so that the serving cell of UE3 is cell ncgi=6, and BWP corresponding to bandwidth 3 is initial access BWP of UE 3; after the UE3 completes the random access, the access network device allocates a proprietary BWP1 and a proprietary BWP2 for the UE3, wherein the proprietary BWP1 of the UE3 includes a BWP corresponding to a bandwidth 1, a bandwidth 2, and a bandwidth 3, and the proprietary BWP2 of the UE3 includes a BWP corresponding to a bandwidth 4.

The initial access BWP of cell ncgi=5 and cell ncgi=6 is bandwidth 1 and bandwidth 3, respectively, and a cell common channel, such as a common physical uplink control channel (common physical uplink control channel, common PUCCH), is typically disposed at both ends of the initial access BWP, as shown in fig. 2. Therefore, although the available bandwidths of the cells ncgi=5 and ncgi=6 are carrier bandwidths, the available bandwidths of the physical uplink shared channels (physical uplink shared channel, PUSCH) are cut off by the common channel and are discontinuous, which affects the cell uplink throughput rate.

In view of this, the embodiments of the present application provide a resource allocation method, in which a plurality of cells on one carrier may realize resource sharing, and the initial access BWP is the available bandwidth of the carrier, so as to increase the air interface resources and improve the uplink and downlink throughput.

The resource allocation method provided by the embodiment of the application can be applied to a communication system architecture shown in fig. 3, and as shown in fig. 3, the communication system architecture can include an access network device and a terminal device.

The access network device may also be referred to as a radio access network (radio access network, RAN) device or base station for accessing the terminal device to the wireless network. The radio access network may be a base station (base station), an evolved NodeB (eNodeB) in an LTE system or an evolved LTE system (LTE-Advanced), a next generation NodeB (gNB) in a 5G communication system, a transmission reception point (transmission reception point, TRP), a baseband unit (BBU), a base station in a future mobile communication system, or an access node in a WiFi system, etc. The radio access network device may also be a module or unit that performs the functions of the base station part, for example, a Centralized Unit (CU), or a Distributed Unit (DU). The CU can complete the functions of a radio resource control protocol and a packet data convergence layer protocol (packet data convergence protocol, PDCP) of the base station and can also complete the functions of a service data adaptation protocol (service data adaptation protocol, SDAP); the DU performs the functions of the radio link control layer and the medium access control (medium access control, MAC) layer of the base station, and may also perform the functions of a part of the physical layer or the entire physical layer, and for a detailed description of the above protocol layers, reference may be made to the relevant technical specifications of the third generation partnership project (3rd generation partnership project,3GPP). The radio access network device may be a macro base station, a micro base station, an indoor station, a relay node, a donor node, or the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the wireless access network equipment.

A terminal device may also be referred to as a terminal, user Equipment (UE), mobile station, mobile terminal, etc. The terminal device may be widely applied to various scenes, for example, device-to-device (D2D), vehicle-to-device (vehicle to everything, V2X) communication, machine-type communication (MTC), internet of things (internet of things, IOT), virtual reality, augmented reality, industrial control, autopilot, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, and the like. The terminal equipment can be a mobile phone, a tablet personal computer, a computer with a wireless receiving and transmitting function, a wearable device, a vehicle, an unmanned aerial vehicle, a helicopter, an airplane, a ship, a robot, intelligent household equipment and the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment.

Referring to fig. 4, a flowchart of a resource allocation method according to an embodiment of the present application is provided, and the method may be applied to the communication system architecture shown in fig. 3. As shown in fig. 4, the method may include the steps of:

step 401, the access network device broadcasts a system message of a first cell, where the system message includes first indication information, where the first indication information is used to indicate resources of a common channel corresponding to the first cell, the first cell and the second cell are cells defined on a same carrier, and initial access BWP (may be abbreviated as BWP 0) of the first cell and the second cell are both available bandwidths of the carrier.

Since the first cell and the second cell are defined on the same carrier, that is, the available bandwidths of the first cell and the second cell are the bandwidths of the carrier, the available resources of the first cell and the second cell on the frequency domain are the same, that is, the first cell and the second cell share the frequency domain resources.

The first cell and the second cell may be cell ncgi=5 and cell ncgi=6 in the example shown in fig. 1. Since the initial access BWP of the first cell and the second cell are all available bandwidths of the carrier, the common channels of the first cell and the second cell are concentrated at two ends of the carrier bandwidth, so that the non-common channels (such as PUSCH, PDSCH, etc.) can be continuous in a larger range, thereby helping to improve uplink and downlink throughput.

However, although the available bandwidths of the first cell and the second cell are the same in the frequency domain, the resources occupied by the common channels of the first cell and the second cell are different. Specifically, the resources occupied by the common channels of the first cell and the second cell may be different in the frequency domain, or different in the time domain, or different resources may also be used in the code domain.

Step 402, the access network device receives or transmits the common channel of the first cell according to the resource of the common channel corresponding to the first cell.

For example, when the common channel includes an uplink common channel, the access network device receives the common channel of the first cell sent by the terminal device according to the resource of the common channel corresponding to the first cell; when the common channel includes a downlink common channel, the access network device sends the common channel of the first cell on the resource of the common channel corresponding to the first cell.

In the above method, a plurality of cells, such as a first cell and a second cell, may be defined on one carrier, where the available bandwidths of the first cell and the second cell are the available bandwidths of the carrier, that is, the resources of the first cell and the second cell in the frequency domain are the same. Since the initial access BWP of the first cell and the second cell are all available bandwidths of the carrier, rather than the frequency division manner shown in fig. 1 and 2, the common channels of the first cell and the second cell are concentrated at two ends of the carrier bandwidth, and are not blocked or discontinuous as shown in fig. 2. Therefore, by adopting the method, the non-common channels of the first cell and the second cell can be continuous in a larger range, thereby being beneficial to improving the uplink and downlink throughput.

Optionally, the common channels involved in the above method may include one or any combination of the following channels:

Physical random access channel (physical random access channel, PRACH): the terminal may send a radio resource control (radio resource control, RRC) connection request message (RRC Connection Request) in the PRACH according to information indicated by the access network device to establish an RRC connection.

Common physical uplink control channel (common physical uplink control channel, common PUCCH): if no dedicated PUCCH resource is configured for the terminal device, the terminal device may transmit uplink control information in the common PUCCH.

Common physical uplink shared channel (common physical uplink shared channel, common PUSCH): when no dedicated PUSCH resource is configured for the terminal device, the terminal device may send uplink traffic data in the common PUSCH.

Common physical downlink control channel (common physical downlink control channel, common PDCCH): scheduling for downlink common information such as remaining minimum system information (remaining minimum system information, RMSI), other system messages (other system information, OSI), paging messages (paging), etc.

Common physical downlink shared channel PDSCH: the network device may transmit downlink service data to the terminal device through the common PDSCH.

It should be understood that the above-mentioned reception or transmission of the common channel refers to reception or transmission of channel information carried by the common channel. For example, the PRACH carries random access information, and the common PDCCH carries downlink control information.

An example is described below for each common channel.

-when the common channel comprises PRACH

In one possible implementation manner, the first indication information included in the system message broadcast by the access network device may be used to indicate a mapping relationship between the SSB and the PRACH of the first cell on the resource. Specifically, the mapping relationship may include a mapping relationship in a time domain, a mapping relationship in a frequency domain, or both a mapping relationship in a time domain and a mapping relationship in a frequency domain.

In a specific embodiment, the PRACH of the first cell and the PRACH of the second cell may use different time domain resources. In the embodiment shown in fig. 5, the PRACH of the first cell and the PRACH of the second cell use the same frequency domain resources, but the time domain resources are different. As shown in fig. 5, the access network device sends SSB1 corresponding to the first cell in the time slot X, and sends SSB2 corresponding to the second cell in the time slot Y, but the frequency domain resources occupied by SSB1 and SSB2 are the same, and the frequency domain resources corresponding to the PRACH corresponding to the first cell and the PRACH corresponding to the second cell are also the same. The system message of the first cell sent by the access network device may include a mapping relationship between SSB1 and PRACH of the first cell in a time domain, for example, the PRACH of the first cell is sent in the nth 1 time slot after SSB1 is sent; the system message of the second cell sent by the access network device may include a mapping relationship between SSB2 and PRACH of the second cell in a time domain, for example, the PRACH of the second cell is sent on the nth 2 time slot after the SSB2 is sent. After receiving SSB1 sent by the access network device in the time slot 1, the terminal device 1 may send PRACH to the access network device in the time slot (x+n1); after receiving SSB2 sent by the access network device in time slot 2, the terminal device 2 may send PRACH to the access network device in time slot (y+n2).

Accordingly, the access network device may determine, according to the received resources occupied by the PRACH, the cell to which the terminal device sent to the PRACH belongs. Still taking fig. 5 as an example, according to the time domain resource of the access network device sending the SSB1, the mapping relationship between the SSB1 and the PRACH in the time domain, and the time domain resource of the access network device sending the SSB2, the mapping relationship between the SSB2 and the PRACH in the time domain, if the access network device receives the PRACH sent by the terminal device in the time slot (x+n1), the access network device may determine that the terminal device sending the PRACH is performing random access through the first cell, that is, the terminal device belongs to the first cell; if the access network device receives the PRACH sent by the terminal device on the time slot (y+n2), the access network device may determine that the terminal device sending the PRACH is performing random access through the second cell, i.e. the terminal device belongs to the second cell.

In another specific embodiment, the system message of the first cell sent by the access network device may include a mapping relationship between SSB1 of the first cell and PRACH in a frequency domain, and a mapping relationship between SSB2 of the second cell and PRACH in a frequency domain. For example, the access network device sends SSB1 of the first cell on Resource Block (RB) X and SSB2 of the second cell on RB Y; the system message of the first cell sent by the access network device may include a mapping relationship between the SSB1 of the first cell and the PRACH in the frequency domain, for example, the PRACH of the first cell and the SSB1 of the first cell differ by N1 RB in the frequency domain, or the PRACH of the first cell and the SSB1 of the first cell use the same frequency domain resource; the system message of the second cell sent by the access network device may include a mapping relationship between the SSB2 of the second cell and the PRACH in the frequency domain, for example, the PRACH of the second cell and the SSB1 of the second cell differ by N2 RBs in the frequency domain, or the PRACH of the second cell and the SSB1 of the second cell use the same frequency domain resource.

Correspondingly, the access network device can determine the cell to which the PRACH belongs according to the frequency domain resource occupied by the received PRACH, namely, determine the cell to which the terminal device for sending the PRACH belongs.

In other embodiments, the PRACH of the first cell and the PRACH of the second cell may use the same or different time and frequency resources, but the code domain resources are different. For example, PRACH of the first cell and the second cell use different root sequences. The PRACH root sequence adopts a ZC sequence as a root sequence (hereinafter referred to as ZC root sequence), the cell preamble sequence is generated by the root sequence through cyclic shift, and the preamble sequence used by the terminal device may be allocated by the access network device. The access network equipment can allocate a root sequence 1 for a first cell and allocate a root sequence 2 for a second cell, and then the terminal equipment which performs random access in the first cell uses the root sequence 1 to send PRACH to the access network equipment, and the terminal equipment which performs random access in the second cell uses the root sequence 2 to send PRACH to the access network equipment; even if the terminal device 1 and the terminal device 2 transmit PRACH in the same frequency domain and with the same time delay, the access network device can determine which PRACH is transmitted by the terminal device belonging to the first cell and which PRACH is transmitted by the terminal device belonging to the second cell according to the root sequence adopted by the received PRACH.

Or when the common channel includes the PRACH, the first indication information included in the system message broadcast by the access network device may also directly indicate the resources occupied by the PRACH of the first cell, without determining the resources occupied by the PRACH through the mapping relationship with the SSB.

In another possible implementation manner, the first indication information included in the system message of the first cell broadcast by the access network device may be used to indicate whether the first cell allows the terminal device to perform random access. That is, even if the cell corresponding to the SSB defined by the cell allows the terminal device to perform random access, the terminal device may not be allowed to perform random access. For example, if the second cell does not allow the terminal device to perform random access, a cell barred (cell barred) parameter may be set in a master system module (master information block, MIB) in a system message of the second cell, so that the second cell prohibits the non-connected terminal device from accessing the cell.

Further, at most one cell is allowed to perform random access in the first cell and the second cell. For example, only the first cell and the second cell are defined on one carrier, and the access network device may be configured to allow only random access of the terminal device in the first cell, and not allow random access of the terminal device in the second cell. For another example, a first cell, a second cell, and a third cell are defined on one carrier, and the access network device may only allow the terminal device to perform random access in the first cell, or may also allow the terminal device to perform random access in the first cell and the third cell.

In the implementation manner, resources reserved for the PRACH can be reduced, and resource overhead of random access is saved, so that transmission resources of service data are increased, and service throughput of access network equipment is increased.

-when the common channel comprises common PUCCH/common PUSCH/common PDCCH/common PDSCH

In one possible implementation, when the common channel includes a common PUCCH, the common PUCCH of the first cell may partially overlap or entirely overlap with the available resources of the common PUCCH of the second cell in the frequency domain. The implementation method can save the resources occupied by the common PUCCH of each cell in the frequency domain to a large extent.

For example, in the specific embodiment shown in fig. 6, the common PUCCH of the first cell and the common PUCCH of the second cell all overlap in frequency domain resources. Since the common PUCCH is generally configured at both ends of the initial access BWP, if the common PUCCH of the first cell and the common PUCCH of the second cell are still configured at both ends of the carrier bandwidth, the available resources of the PUSCH (or other channel) can be continuous over a wide range in the frequency domain without being blocked by the common PUCCH. However, in the conventional resource allocation manner, that is, according to the situation shown in fig. 1 and fig. 2, the initial access BWP of the first cell and the initial access BWP of the second cell are separated and not multiplexed in the frequency domain, so that the common PUCCH of the first cell and the common PUCCH of the second cell may be discretely distributed on the carrier bandwidth, so that the available resources of the PUSCH (or other channels) are discontinuous in the frequency domain, which is not beneficial to the scheduling of uplink and downlink data, and affects the uplink and downlink throughput.

Similarly, when the common channel includes the common PUSCH, the available bandwidths of the common PUSCH of the first cell and the common PUSCH of the second cell on the frequency domain may be partially overlapped or fully overlapped; when the common channel includes a common PDCCH, the available bandwidths of the common PDCCH of the first cell and the common PDCCH of the second cell in the frequency domain may be partially or fully overlapped; when the common channel includes the common PDSCH, the available bandwidths of the common PDSCH of the first cell and the common PDSCH of the second cell in the frequency domain may partially overlap or entirely overlap.

In another possible implementation, when the common channel includes a common PUCCH, the common PUCCH of the first cell and the common PUCCH of the second cell may not overlap at all.

For example, in the specific embodiment shown in fig. 7, the resources of the common PUCCH of the first cell and the common PUCCH of the second cell in the frequency domain do not overlap at all. Although resources of the common PUCCH of the first cell and the common PUCCH of the second cell in the frequency domain are not overlapped at all, double resources are required in the frequency domain as compared to when the resources are overlapped at all, if the common PUCCH of the first cell and the common PUCCH of the second cell are still configured at both ends of the carrier bandwidth, the available resources of the PUSCH (or other channels) can still be continued in a larger range in the frequency domain without being blocked by the common PUCCH.

Similarly, the available bandwidths of the common PUSCH of the first cell and the common PUSCH of the second cell in the frequency domain may not overlap at all; the available bandwidths of the common PDCCH of the first cell and the common PDCCH of the second cell on the frequency domain can be completely not overlapped; the available bandwidths of the common PDSCH of the first cell and the common PDSCH of the second cell in the frequency domain may also overlap entirely.

Further, when the common channel includes a downlink common channel, such as a common PDCCH, a common PDSCH, then the downlink resources used to transmit the downlink common channel may include downlink BWP and/or a downlink control resource set (control resource set, CORESET) in particular. Further, the available bandwidths of the downlink BWP of the first cell and the downlink BWP of the second cell in the frequency domain are the same or partially overlap, and/or the available bandwidths of the downlink CORESET of the first cell and the downlink CORESET of the second cell in the frequency domain are the same or partially overlap. The available resources of the downlink resources of the first cell and the second cell on the frequency domain are the same, so that the effect of saving the frequency domain resources can be achieved, and the uplink and downlink throughput can be improved.

The access network device may allocate resources of the common channel for the first cell and the second cell, and may allocate resources of the non-common channel, i.e. dedicated resources of the terminal device, for the first cell and the second cell. Specifically, the access network device is configured to completely overlap or partially overlap the resource pools allocated on the frequency domain for the non-common channel of the first cell and the non-common channel of the second cell. For example, the access network device may use the white area in fig. 7 as a resource pool for a non-common channel of the first cell and the white area as a resource pool for a non-common channel of the second cell. The non-common channels of the first cell and the second cell have the same available resources in the frequency domain, so that the effect of saving the frequency domain resources can be achieved, and the uplink and downlink throughput can be improved.

Wherein the non-common channels may include PUCCH, PDCCH, PUSCH, PDSCH, etc.

Although the access network device is a completely overlapping or partially overlapping resource pool configured on the frequency domain for the non-common channels of the first cell and the second cell, for the overlapping part of the resource pools, different resources in the resource pools can be allocated to different terminal devices as far as possible.

When the access network device configures the dedicated PUCCH of the terminal device from the resource pool of the overlapping portion, the resource of the dedicated PUCCH allocated to the first terminal device of the first cell is different from the resource of the dedicated PUCCH allocated to the second terminal device of the first cell. For example, the access network device may use the white area in fig. 7 as a resource pool for the non-common channel of the first cell; the access network equipment distributes the RB X in the white region to the terminal equipment 1 of the first cell so that the terminal equipment 1 transmits the PUCCH on the RB X; the access network device allocates RB Y in the white region to the terminal device 2 of the first cell so that the terminal device 2 transmits PUCCH on RB Y.

When the access network device configures the dedicated PUCCH of the terminal device from the resource pool of the overlapping portion, the resource of the dedicated PUCCH allocated to the first terminal device of the first cell is different from the resource of the dedicated PUCCH allocated to the third terminal device of the second cell. For example, the access network device allocates RB X in the resource pool overlapping portion to the terminal device 1 of the first cell, so that the terminal device 1 transmits PUCCH on RB X; the access network device allocates RB Y in the resource pool overlapping portion to the terminal device 3 of the second cell, so that the terminal device 3 transmits PUCCH on RB Y.

Similarly, when the access network device configures the dedicated PDCCH of the terminal device from the resource pool of the overlapping portion, the resources of the dedicated PDCCH allocated to the first terminal device of the first cell are different from the resources of the dedicated PDCCH allocated to the second terminal device of the second cell. For example, the access network device allocates RB X in the resource pool overlapping portion to the terminal device 1 of the first cell, i.e. the access network device sends PDCCH to the terminal device 1 on RB X; the access network device allocates RB Y in the overlapping portion of the resource pool to the terminal device 2 of the first cell, i.e. the access network device sends PDCCH to the terminal device 2 on RB Y.

When the access network device configures the special PDCCH of the terminal device from the resource pool of the overlapped part, the resource of the special PDCCH allocated to the first terminal device of the first cell is different from the resource of the special PDCCH allocated to the third terminal device of the second cell. For example, the access network device allocates RB X in the resource pool overlapping portion to the terminal device 1 of the first cell, i.e. the access network device sends PDCCH to the terminal device 1 on RB X; the access network device allocates RB Y in the overlapping portion of the resource pool to the terminal device 3 of the second cell, i.e. the access network device sends PDCCH to the terminal device 3 on RB Y.

When the access network device executes the method embodiment, the access network device can adopt a centralized resource management mode or a single-cell resource management mode.

-centralized resource management mode

In the case that the access network device adopts the centralized resource management mode, the access network device may be internally configured with a resource collaborative management module and a plurality of cell resource management modules, as shown in fig. 8.

The resource collaborative management module is used for carrying out uniform resource management and allocation on the resources of a plurality of cells, distributing the resources for each cell and avoiding resource conflict among the cells.

Each cell resource management module is mainly used for managing and distributing resources in the cell. When a cell is established, the corresponding cell resource management module can apply for common channel resources such as SSB, PRACH, common PDCCH, common PUCCH and the like of the cell to the resource collaborative management module, and after the allocated resources are acquired, the resource configuration information of the common channel is broadcasted to the terminal equipment of the cell through a system message, so that the activation of the cell is realized. After the cell is activated, the cell resource management module is responsible for the access and connection state management of the terminal equipment in the cell and manages the resources of the terminal equipment residing in the cell. When the cell resource management module manages the resources of the terminal equipment of the cell, the resource system management module needs to apply for the resources, the cell resource management module can apply for the resources with the cell as granularity, namely, apply for obtaining the available resources of all the terminal equipment of the cell, or apply for the resources with the terminal equipment as granularity, namely, the resources allocated to each terminal equipment need to apply for the resource collaborative management module, thereby obtaining the allocated resources.

In this mode, the identity of each cell is unique within the resource co-filtering module and the user identity (UE ID) is unique within each cell resource management module. The cell resource management module may also apply for channel identifiers, such as identifiers of channels of PRACH, common PDCCH, common PUCCH, etc., to the resource co-management module.

-single cell resource management mode

In the case that the access network device adopts the single-cell resource management mode, the access network device may be internally configured with a single-cell resource management module, as shown in fig. 9.

In the mode, the single-cell resource management module is used for carrying out uniform resource management and allocation on resources of a plurality of cells and carrying out management and allocation on the resources of each terminal device under each cell; and regarding a plurality of cells as one cell relative to the single-cell resource management module, and managing and distributing resources. Compared with a centralized resource management mode, the single-cell resource management mode reduces message interaction among modules and has higher timeliness.

Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device comprises a processing module 1001, a transceiver module 1002. The processing module 1001 is configured to implement processing of data by the communication device. The transceiver module 1002 is configured to receive and transmit interactive contents between the communication device and other units or network elements. It is to be appreciated that the processing module 1001 in the embodiments of the present application may be implemented by a processor or processor-related circuit component (alternatively referred to as a processing circuit), and the transceiver module 1002 may be implemented by a receiver/transmitter or a receiver/transmitter-related circuit component.

The communication device may be a communication device apparatus, a chip applied in the communication device apparatus, or other combination devices, components, etc. having the functions of the communication device apparatus.

The communication device may be configured to implement the steps performed by the access network device in the above method embodiment, specifically: the processing module 1001 is configured to perform, by means of the transceiver module 1002: broadcasting a system message, wherein the system message comprises first indication information, the first indication information is used for indicating resources of a common channel corresponding to a first cell to which the system message belongs, the first cell and a second cell are cells defined on the same carrier, and initial access bandwidth parts BWP of the first cell and the second cell are bandwidths of the same carrier; and receiving or transmitting the public channel of the first cell according to the resources of the public channel corresponding to the first cell.

Furthermore, the above modules may also be used to support other procedures performed by the access network device in the embodiments shown in fig. 4-9. The advantages are described above and will not be repeated here.

The embodiment of the application also provides communication equipment. The communication device comprises a processor 1101 as shown in fig. 11, and a communication interface 1102 connected to the processor 1101. Further, the communication device may also include a memory 1103 and a communication bus 1104.

The processor 1101 may be a general purpose processor, a microprocessor, an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, or one or more integrated circuits for controlling program execution in the present application, or the like. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution.

Communication interface 1102 is used to communicate with other devices such as a PCI bus interface, a network card, a radio access network (radio access network, RAN), a wireless local area network (wireless local area networks, WLAN), etc.

The memory 1103 is configured to store program instructions and/or data, so that the processor 1101 invokes the instructions and/or data stored in the memory 1103 to implement the above-described functions of the processor 1101. The memory 1103 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM) or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 1103 may be a stand-alone memory, such as an off-chip memory, coupled to the processor 1101 by a communication bus 1104. The memory 1103 may also be integrated with the processor 1101. The storage 1103 may include internal memory and external memory (e.g., hard disk, etc.).

Communication bus 1104 may include a path for communicating information between the components.

The communication device may be configured to implement the steps performed by the terminal device in the above-described method embodiment, and specifically, the processor 1101 may call the instructions in the memory 1103, and perform the following steps through the communication interface 1102: broadcasting a system message of a first cell, wherein the system message comprises first indication information, the first indication information is used for indicating resources of a common channel corresponding to the first cell, the first cell and a second cell are cells defined on the same carrier, and initial access bandwidth parts BWP of the first cell and the second cell are bandwidths of the same carrier; and receiving or transmitting the public channel of the first cell according to the resources of the public channel corresponding to the first cell.

In one possible implementation, the common channel comprises a physical random access channel, PRACH; the resources of the common channel indicated by the first indication information include: mapping relation between the synchronization signal and the physical broadcast channel SSB of the first cell and the PRACH of the first cell on resources; the resources of the PRACH corresponding to the first cell in the time domain are different from the resources of the PRACH corresponding to the second cell in the time domain, or the resources of the PRACH corresponding to the first cell in the frequency domain are different from the resources of the PRACH corresponding to the second cell in the frequency domain.

In one possible implementation, the common channel comprises a physical random access channel, PRACH; the resources of the common channel indicated by the first indication information include: resources of the PRACH of the first cell on a code domain; and the resources of the PRACH corresponding to the first cell on the code domain are different from the resources of the PRACH corresponding to the second cell on the code domain.

In one possible implementation, the common channel comprises a physical random access channel, PRACH; the resources of the common channel indicated by the first indication information include: whether the terminal equipment is allowed to perform random access in the first cell; at most one cell is allowed to perform random access in the first cell and the second cell.

In a possible implementation manner, the processor 1101 is further configured to determine, according to a resource of a common channel sent by the terminal device, a cell to which the terminal device belongs.

In one possible implementation, the common channel includes one or more of the following channels: common physical uplink control channel common PUCCH, common physical uplink shared channel common PUSCH, common physical downlink control channel common PDCCH, common physical downlink shared channel common PDSCH; the resources of the common channel corresponding to the first cell and the resources of the common channel corresponding to the second cell are partially overlapped or completely overlapped on the frequency domain; or, the resource of the common channel corresponding to the first cell and the resource of the common channel corresponding to the second cell have no overlapping part in the frequency domain.

In one possible implementation, the common channel includes a downlink common channel, and the resources of the downlink common channel include: downlink bandwidth part BWP, and/or downlink control resource set CORESET; the downlink BWP corresponding to the first cell and the downlink BWP corresponding to the second cell have the same resource in the frequency domain; and the downlink CORESET corresponding to the first cell and the downlink CORESET corresponding to the second cell have the same resource in the frequency domain.

In one possible implementation manner, the resource pools in the frequency domain of the non-common channels corresponding to the first cell and the second cell are completely overlapped or partially overlapped.

In a possible implementation manner, the resources of the physical uplink control channel PUCCH allocated by the access network device to the terminal device of the first cell are different from the PUCCH resources allocated to the terminal device of the second cell; the access network device allocates PUCCH resources for the first terminal device of the first cell differently from PUCCH resources allocated for the second terminal device of the first cell.

In a possible implementation manner, the resources of the physical downlink control channel PDCCH allocated by the access network device to the terminal device of the first cell are different from the PDCCH resources allocated to the terminal device of the second cell; the access network device allocates a different resource to the PDCCH of the first terminal device of the first cell from the PDCCH resource allocated to the second terminal device of the first cell.

Furthermore, each of the above may be used to support not only other procedures performed by the access network device in the embodiments shown in fig. 4-9. The advantages are described above and will not be repeated here.

Based on the same technical idea, the embodiments of the present application further provide a computer readable storage medium, in which computer readable instructions are stored, which when run on a computer, cause the method described in any one of the possible implementations as described above to be performed.

The present embodiments provide a computer program product comprising instructions which, when run on a computer, cause the above-described method embodiments to be performed.

In the description of the embodiment of the present application, "and/or" describing the association relationship of the association object indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. The term "plurality" as used herein refers to two or more.

In addition, it should be understood that in the description of this application, the words "first," "second," and the like are used merely for distinguishing between the descriptions and not for indicating or implying any relative importance or order. Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in random access memory, flash memory, read only memory, programmable read only memory, erasable programmable read only memory, electrically erasable programmable read only memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a base station or terminal. The processor and the storage medium may reside as discrete components in a base station or terminal.

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, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network device, a user device, or other programmable apparatus. The computer program or instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program or instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, e.g., floppy disk, hard disk, tape; but also optical media such as digital video discs; but also semiconductor media such as solid state disks. The computer readable storage medium may be volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage medium.

In the various embodiments of the application, if there is no specific description or logical conflict, terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments according to their inherent logical relationships.

It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application. The sequence number of each process does not mean the sequence of the execution sequence, and the execution sequence of each process should be determined according to the function and the internal logic.

Claims (13)

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

the access network equipment broadcasts a system message of a first cell, wherein the system message comprises first indication information, the first indication information is used for indicating resources of a common channel corresponding to the first cell, the first cell and a second cell are cells defined on the same carrier, and initial access bandwidth parts BWP of the first cell and the second cell are all bandwidths of the carrier;

and the access network equipment receives or transmits the public channel of the first cell according to the resources of the public channel corresponding to the first cell.

2. The method according to claim 1, wherein the common channel comprises a physical random access channel, PRACH;

the resources of the common channel indicated by the first indication information include: mapping relation between the synchronization signal and the physical broadcast channel SSB of the first cell and the PRACH of the first cell on resources;

the resources of the PRACH corresponding to the first cell in the time domain are different from the resources of the PRACH corresponding to the second cell in the time domain, or the resources of the PRACH corresponding to the first cell in the frequency domain are different from the resources of the PRACH corresponding to the second cell in the frequency domain.

3. The method according to claim 1, wherein the common channel comprises a physical random access channel, PRACH;

the resources of the common channel indicated by the first indication information include: resources of the PRACH of the first cell on a code domain;

and the resources of the PRACH corresponding to the first cell on the code domain are different from the resources of the PRACH corresponding to the second cell on the code domain.

4. The method according to claim 1, wherein the common channel comprises a physical random access channel, PRACH;

the resources of the common channel indicated by the first indication information include: whether the terminal equipment is allowed to perform random access in the first cell;

At most one cell is allowed to perform random access in the first cell and the second cell.

5. The method according to any one of claims 2-4, further comprising:

and the access network equipment determines the cell to which the terminal equipment belongs according to the resource of the public channel sent by the terminal equipment.

6. The method of any of claims 1-5, wherein the common channel comprises one or more of the following channels: common physical uplink control channel common PUCCH, common physical uplink shared channel common PUSCH, common physical downlink control channel common PDCCH, common physical downlink shared channel common PDSCH;

the resources of the common channel corresponding to the first cell and the resources of the common channel corresponding to the second cell are partially overlapped or completely overlapped on the domain; or alternatively

And the resources of the common channel corresponding to the first cell and the resources of the common channel corresponding to the second cell have no overlapping part in the frequency domain.

7. The method according to any one of claims 1-6, wherein the common channel comprises a downlink common channel, and wherein the resources of the downlink common channel comprise: downlink bandwidth part BWP, and/or downlink control resource set CORESET;

The downlink BWP corresponding to the first cell and the downlink BWP corresponding to the second cell have the same resource in the frequency domain;

and the downlink CORESET corresponding to the first cell and the downlink CORESET corresponding to the second cell have the same resource in the frequency domain.

8. The method according to any of claims 1-7, wherein the resource pools in the frequency domain of the non-common channels corresponding to the first and second cells overlap completely or partially.

9. The method of claim 8, wherein the access network device allocates a different physical uplink control channel, PUCCH, resource for the terminal device of the first cell than the PUCCH resource allocated for the terminal device of the second cell;

the access network device allocates PUCCH resources for the first terminal device of the first cell differently from PUCCH resources allocated for the second terminal device of the first cell.

10. The method of claim 8, wherein the access network device allocates a different resource for the physical downlink control channel, PDCCH, for the terminal device of the first cell than for the terminal device of the second cell;

The access network device allocates a different resource to the PDCCH of the first terminal device of the first cell from the PDCCH resource allocated to the second terminal device of the first cell.

11. A communication device, comprising: a processor, and a memory and a communication interface coupled to the processor, respectively; the communication interface is used for communicating with other devices; the processor being configured to execute instructions or programs in the memory, and to perform the method according to any one of claims 1-10 via the communication interface.

12. A computer readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the method of any of claims 1-10.

13. A computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-10.