CN115134914A - Communication method and related equipment - Google Patents
Communication method and related equipment Download PDFInfo
- Publication number
- CN115134914A CN115134914A CN202110315492.3A CN202110315492A CN115134914A CN 115134914 A CN115134914 A CN 115134914A CN 202110315492 A CN202110315492 A CN 202110315492A CN 115134914 A CN115134914 A CN 115134914A
- Authority
- CN
- China
- Prior art keywords
- frequency domain
- signal
- domain resource
- terminal
- paging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 90
- 238000004891 communication Methods 0.000 title claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims abstract description 69
- 230000001360 synchronised effect Effects 0.000 claims abstract description 25
- 230000006870 function Effects 0.000 claims description 77
- 238000005259 measurement Methods 0.000 claims description 45
- 238000012545 processing Methods 0.000 claims description 28
- 125000004122 cyclic group Chemical group 0.000 claims description 24
- 238000004590 computer program Methods 0.000 claims description 13
- 238000012549 training Methods 0.000 claims description 13
- 230000009131 signaling function Effects 0.000 claims description 5
- 238000007726 management method Methods 0.000 description 25
- 235000019527 sweetened beverage Nutrition 0.000 description 25
- 238000010586 diagram Methods 0.000 description 19
- 238000001514 detection method Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000011664 signaling Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- CSRZQMIRAZTJOY-UHFFFAOYSA-N trimethylsilyl iodide Substances C[Si](C)(C)I CSRZQMIRAZTJOY-UHFFFAOYSA-N 0.000 description 2
- 108010076504 Protein Sorting Signals Proteins 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the application provides a communication method and related equipment, wherein the method comprises the following steps: the network equipment determines a target frequency domain resource and sends a target signal to the terminal on the target frequency domain resource; the terminal determines a target frequency domain resource and receives a target signal from the network equipment on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a synchronous signal block is included in the bandwidth of the first frequency domain resource, and a synchronous signal block is not included in the bandwidth of the second frequency domain resource; if the target frequency domain resource is the first frequency domain resource, the target signal is the first signal; if the target frequency domain resource is the second frequency domain resource, the target signal is the second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource. By adopting the embodiment of the application, when a plurality of frequency domain resources are configured for paging, backward compatibility and frequency domain resource switching are avoided.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communication method and a related device.
Background
The existing Fifth-Generation (5G) mobile communication technology New wireless (NR) system only supports one initial downlink transmission fractional bandwidth (initial DL BWP), and as the number of network accesses to a low-capability (REDCAP) terminal increases, there is a paging capacity problem in the network device configuring one initial DL BWP. Therefore, it can be considered to configure multiple initial DL BWPs, however, in the scenario of configuring multiple initial DL BWPs, how to send Paging Early Indication (PEI), the current standard does not involve related discussion, nor has there been any previous solution.
Disclosure of Invention
The embodiment of the application provides a communication method and related equipment, which are beneficial to avoiding backward compatibility and frequency domain resource switching when a plurality of frequency domain resources are configured for paging.
In a first aspect, an embodiment of the present application provides a communication method, which is applied to a network device, and the method includes: determining target frequency domain resources; transmitting a target signal to a terminal on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a synchronization signal block (PBCH block, SSB) is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource. In the embodiment of the application, the network equipment determines a target frequency domain resource and sends a target signal to the terminal on the target frequency domain resource; similarly, the terminal also determines a target frequency domain resource and receives a target signal from the network equipment on the target frequency domain resource; the target frequency domain resource may be a first frequency domain resource or a second frequency domain resource, the bandwidth of the first frequency domain resource includes a synchronization signal block, and the bandwidth of the second frequency domain resource does not include a synchronization signal block; on the network device side, the first frequency domain resource or the second frequency domain resource may be used for paging transmission; on the terminal side, the first frequency domain resource or the second frequency domain resource may be used for paging reception; the target signal can be a first signal or a second signal, the first signal is transmitted on the first frequency domain resource, the second signal is transmitted on the second frequency domain resource, and the first signal and the second signal have at least one difference in terms of signal type, function and time domain resource; because the network equipment can configure a plurality of frequency domain resources for paging (including paging sending and paging receiving), the problem of paging capacity caused by the increase of the network access quantity of the low-power terminals is solved; moreover, when the target signal is transmitted on different frequency domain resources, at least one item of the target signal is different in signal type, function and time domain resource, so that when a plurality of frequency domain resources are configured for paging, the problem that low-energy terminal paging affects communication of a stock (legacy) terminal (namely, the problem of backward compatibility) and the problem that the low-energy terminal paging requires frequency domain resource switching is avoided. For example, the target signal may be a PEI signal, the target signal may be an initial DL BWP transmitting SSBs, and the second frequency-domain resource may be an initial DL BWP not transmitting SSBs. When the PEI signal is transmitted on the initial DL BWP of the SSB, the PEI signal and the SSB are positioned on the same initial DL BWP, the low-power terminal wakes up before one or more SSBs before the PEI signal, obtains time-frequency synchronization according to the one or more SSBs, and further receives the PEI signal; in this case, the low-power terminal multiplexes the existing SSB of the NR, and the paging of the low-power terminal and the paging of the stock terminal share the initial DL BWP for transmitting the SSB, so the paging of the low-power terminal needs to avoid affecting the communication of the stock terminal, and therefore, the PEI signal adopts a Downlink Control Information (DCI) structure, that is, the first signal is DCI information, and multiplexes the existing common search space of the NR, so that there is no backward compatibility influence. When the PEI signal is transmitted on the initial DL BWP which does not transmit the SSB, the low-power terminal needs to switch from the initial DL BWP which does not transmit the SSB to the initial DL BWP which transmits the SSB to receive the SSB, so as to acquire time-frequency synchronization; switching from the initial DL BWP transmitting SSB to the initial DL BWP not transmitting SSB, receiving PEI signals on the initial DL BWP not transmitting SSB, and increasing the power consumption of the terminal when the terminal switches between the initial DL BWPs; in this case, the PEI signal may adopt a sequence structure, and the sequence carries functions such as time-frequency synchronization and Radio Resource Measurement (RRM) which are originally carried by the SSB, so that the terminal may reside on the initial DL BWP which does not transmit the SSB, and avoid switching between the initial DL BWPs. The network equipment can configure a plurality of initial DL BWPs, thereby solving the problem of paging capacity; in addition, different requirements are considered for the initial DL BWP transmitting the SSB and the initial DL BWP not transmitting the SSB, and PEI signals transmitted by the PEI signals are designed differently, so that the problems of the PEI signals and the SSB signals can be overcome.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and when the first signal is generated, a Cyclic Redundancy Check (CRC) bit needs to be added; the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added. In the embodiment of the application, the first signal is downlink control information, and when the terminal receives the downlink control information, reliability check is generally required to be performed to ensure reliable information transmission, so that when the first signal is generated, cyclic redundancy check bits, that is, cyclic redundancy check codes, need to be added; the second signal is a sequence, and when the terminal receives the sequence, reliability check can not be performed, so that when the second signal is generated, cyclic redundancy check bits do not need to be added.
In a possible implementation, in case that the first signal and the second signal differ in signal type: the first signal is downlink control information, and channel coding is required when the first signal is generated; the second signal is a sequence, and when the second signal is generated, channel coding is not needed. In the embodiment of the present application, the first signal is downlink control information, and when the downlink control information is generated, channel coding is generally required to be performed to combat noise and interference on a channel and improve transmission efficiency, so that when the first signal is generated, channel coding is required; the second signal is a sequence, and the sequence is generally generated without channel coding, so that the second signal is generated without channel coding.
In one possible implementation, in case there is a difference in functionality between the first signal and the second signal: the function of the first signal is to indicate whether the terminal listens for one or more paging opportunities following the first signal; the second signal functions to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic Gain Control (AGC), time synchronization, frequency synchronization, radio resource management measurements, beam training. In this embodiment, the first signal is transmitted on the first frequency domain resource including the synchronization signal block in the bandwidth, so the function of the first signal is only to indicate whether the terminal monitors one or more paging opportunities after the first signal, and other functions (e.g., automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training) may multiplex the synchronization signal block in the first frequency domain resource bandwidth; the second signal is transmitted on a second frequency domain resource that does not include a synchronization signal block within the bandwidth, so the function of the second signal needs to include other functions (e.g., automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training) in addition to indicating whether the terminal listens to one or more paging opportunities following the second signal, so as to avoid the need for frequency domain resource switching by the terminal upon paging reception.
In one possible implementation, in case that the first signal and the second signal differ in terms of time domain resources: in one transmission, the number of time units (i.e., the number of OFDM symbols) occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain. Illustratively, in one transmission, the number of time units occupied by the first signal in the time domain is smaller than the number of time units occupied by the second signal in the time domain. In the embodiment of the application, the first signal and the second signal have different functions, so that the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain; specifically, the functions carried by the first signal are less than the functions carried by the second signal, so the number of time units occupied by the first signal in the time domain is less than the number of time units occupied by the second signal in the time domain, that is, the number of OFDM symbols occupied by the second signal in the time domain should be greater than the number of OFDM symbols occupied by the first signal in the time domain.
In one possible implementation, the second signal and the synchronization signal block are quasi co-located (QCL). In the embodiment of the present application, since the second signal is transmitted on the second frequency domain resource that does not include the synchronization signal block in the bandwidth, the second signal and the synchronization signal block can be designed to be quasi co-located, which is beneficial to avoiding the need of switching the frequency domain resource when the terminal receives the paging.
In a possible implementation manner, when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: reference signal received power, reference signal received quality. In this embodiment, since the second signal is transmitted on the second frequency domain resource that does not include the synchronization signal block in the bandwidth, when the second signal is designed to be used for the radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: the second signal of the present application can also achieve the above measurement value, so that even when the terminal is prevented from paging and receiving the second frequency domain resource that does not include the synchronization signal block, the terminal does not need to switch from the second frequency domain resource that does not include the synchronization signal block to the frequency domain resource that includes the synchronization signal block to obtain the above measurement value.
In one possible implementation, the determining the target frequency domain resource includes: determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging transmission; or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources. In the embodiment of the present application, the plurality of frequency domain resources include a frequency domain resource including a synchronization signal block in a bandwidth and a frequency domain resource not including the synchronization signal block in the bandwidth, the target signal may be a first signal or a second signal, and the capability information of the terminal may indicate which frequency domain resource the terminal supports to receive the target signal or which target signal the terminal supports, so the network device side may determine the target frequency domain resource from the plurality of frequency domain resources for paging transmission according to the capability information of the terminal, so as to transmit the target signal to the terminal; the terminal side may also determine a target frequency domain resource from a plurality of frequency domain resources for paging reception according to the capability information of the terminal, so as to receive a target signal from the network device, where the plurality of frequency domain resources for paging reception are also the plurality of frequency domain resources for paging transmission. If the terminal can support receiving the target signal on both the frequency domain resource including the synchronization signal block in the bandwidth and the frequency domain resource not including the synchronization signal block in the bandwidth, or the first signal terminal and the second signal terminal can support, the target frequency domain resource can be determined according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources, and in this case, the load balance is not considered; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources, and under the condition, considering load balancing. Therefore, the frequency domain resources required by the terminal paging can be determined according to the capability of the terminal, the identification of the terminal, the number of the frequency domain resources, the weight of the frequency domain resources and the like.
In one possible implementation manner, the capability information of the terminal includes: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; the determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal includes: if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resources which include the synchronization signal block in the bandwidth; and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not include the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not include the synchronous signal block in the bandwidth. In the embodiment of the application, if a target signal supported by a terminal is a first signal and/or the terminal does not support receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth, determining a first frequency domain resource from the frequency domain resource which includes the synchronization signal block in the bandwidth; if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not include the synchronization signal block in the bandwidth; therefore, the frequency domain resource required by the terminal paging can be determined according to the capability of the terminal, and the paging is ensured to be normally carried out.
In one possible implementation, the determining the second frequency-domain resource from the frequency-domain resources not including the synchronization signal block in the bandwidth includes: and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth. In this embodiment, there may be a plurality of frequency domain resources that do not include the synchronization signal block in the bandwidth, so a specific frequency domain resource may be determined from the frequency domain resources that do not include the synchronization signal block in the plurality of bandwidths according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources that do not include the synchronization signal block in the bandwidth, and the specific frequency domain resource may be used as the second frequency domain resource for paging the terminal.
In a possible implementation manner, the determining the target frequency domain resource according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources includes: the index value of the target frequency domain resource satisfies the following formula:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources. In the embodiment of the application, the index value of the target frequency domain resource can be calculated according to the identification of the terminal, the number of the frequency domain resources, the number of the paging frames in one paging cycle and the number of the paging opportunities in one paging frame, so that the determination of the target frequency domain resource is facilitated.
In one possible implementation manner, the determining the target frequency domain resource according to the identifier of the terminal and the weight of each of the plurality of frequency domain resources includes: the index value of the target frequency domain resource is a minimum k value satisfying the following formula:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where, k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a rounding-down operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W is W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight of the ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1. In the embodiment of the application, the index value of the target frequency domain resource can be calculated according to the identifier of the terminal, the number of frequency domain resources, the number of paging frames in a paging cycle, the number of paging opportunities in a paging frame and the weight of the frequency domain resource, so that the target frequency domain resource can be determined; in addition, when the target frequency domain resource is determined, the weight of the frequency domain resource is applied, so that the load balance is facilitated.
In a second aspect, an embodiment of the present application provides a communication method, and beneficial effects may refer to the description of the first aspect, which is not described herein again. The method is applied to the terminal and comprises the following steps: determining target frequency domain resources; receiving a target signal from a network device on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging reception, a synchronization signal block is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and when the first signal is generated, a cyclic redundancy check bit needs to be added; the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and channel coding is needed when the first signal is generated; the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
In a possible implementation, in the case where the first signal and the second signal differ in function: the first signal functions to indicate whether the terminal listens for one or more paging opportunities following the first signal; the function of the second signal is to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training.
In one possible implementation, in case that the first signal and the second signal differ in terms of time domain resources: in one transmission, the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
In one possible implementation, the second signal and the synchronization signal block are quasi co-located.
In a possible implementation manner, when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: reference signal received power, reference signal received quality.
In one possible implementation, the determining the target frequency domain resource includes: determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging reception; or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
In a possible implementation manner, the capability information of the terminal includes: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; the determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal includes: if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resource which includes the synchronization signal block in the bandwidth; and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not comprise the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not comprise the synchronous signal block in the bandwidth.
In one possible implementation, the determining the second frequency-domain resource from the frequency-domain resources within the bandwidth that do not include the synchronization signal block includes: and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth.
In a possible implementation manner, the determining the target frequency domain resource according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources includes: the index value of the target frequency domain resource satisfies the following formula:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
In one possible implementation manner, the determining the target frequency domain resource according to the identifier of the terminal and the weight of each of the plurality of frequency domain resources includes: the index value of the target frequency domain resource is a minimum k value satisfying the following formula:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a lower rounding operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight value of an ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
In a third aspect, embodiments of the present application provide a communication apparatus, and beneficial effects may be seen in the description of the first aspect, which is not described herein again. The device is applied to network equipment, and comprises: a processing unit for determining a target frequency domain resource; a receiving and sending unit, configured to send a target signal to a terminal on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a bandwidth of the first frequency domain resource includes a synchronization signal block, and a bandwidth of the second frequency domain resource does not include the synchronization signal block; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
In a possible implementation, in case that the first signal and the second signal differ in signal type: the first signal is downlink control information, and when the first signal is generated, a cyclic redundancy check bit needs to be added; the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added.
In a possible implementation, in case that the first signal and the second signal differ in signal type: the first signal is downlink control information, and channel coding is required when the first signal is generated; the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
In one possible implementation, in case there is a difference in functionality between the first signal and the second signal: the first signal functions to indicate whether the terminal listens for one or more paging opportunities following the first signal; the second signal functions to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, and beam training.
In one possible implementation, in case that the first signal and the second signal differ in terms of time domain resources: in one transmission, the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
In one possible implementation, the second signal and the synchronization signal block are quasi co-located.
In a possible implementation manner, when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: reference signal received power, reference signal received quality.
In a possible implementation manner, in terms of the determining the target frequency domain resource, the processing unit is specifically configured to: determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging transmission; or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
In a possible implementation manner, the capability information of the terminal includes: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; in the aspect of determining the target frequency domain resource from multiple frequency domain resources according to the capability information of the terminal, the processing unit is specifically configured to: if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resources which include the synchronization signal block in the bandwidth; and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not comprise the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not comprise the synchronous signal block in the bandwidth.
In a possible implementation manner, in the aspect of determining the second frequency domain resource from the frequency domain resources not including the synchronization signal block in the bandwidth, the processing unit is specifically configured to: and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth.
In a possible implementation manner, in the aspect that the target frequency domain resource is determined according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources, an index value of the target frequency domain resource satisfies the following equation:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
In one possible implementation, in the determining the target frequency-domain resource according to the identifier of the terminal and the weight of each of the plurality of frequency-domain resources, the index value of the target frequency-domain resource is a minimum k value that satisfies the following equation:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a lower rounding operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight value of an ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
In a fourth aspect, embodiments of the present application provide a communication apparatus, and beneficial effects may be seen in the description of the first aspect, which is not described herein again. The device is applied to a terminal, and comprises: a processing unit for determining a target frequency domain resource; a transceiving unit, configured to receive a target signal from a network device on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging reception, a synchronization signal block is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and when the first signal is generated, a cyclic redundancy check bit needs to be added; the second signal is a sequence, and cyclic redundancy check bits are not required to be added when the second signal is generated.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and channel coding is needed when the first signal is generated; the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
In one possible implementation, in case there is a difference in functionality between the first signal and the second signal: the function of the first signal is to indicate whether the terminal listens for one or more paging opportunities following the first signal; the function of the second signal is to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, and beam training.
In one possible implementation, in case that the first signal and the second signal differ in terms of time domain resources: in one transmission, the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
In one possible implementation, the second signal and the synchronization signal block are quasi co-located.
In a possible implementation manner, when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: reference signal received power, reference signal received quality.
In a possible implementation manner, in terms of the determining the target frequency domain resource, the processing unit is specifically configured to: determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging reception; or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
In one possible implementation manner, the capability information of the terminal includes: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; in the aspect of determining the target frequency domain resource from multiple frequency domain resources according to the capability information of the terminal, the processing unit is specifically configured to: if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resource which includes the synchronization signal block in the bandwidth; and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not include the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not include the synchronous signal block in the bandwidth.
In a possible implementation manner, in the aspect of determining the second frequency domain resource from the frequency domain resources not including the synchronization signal block in the bandwidth, the processing unit is specifically configured to: and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth.
In a possible implementation manner, in the aspect that the target frequency domain resource is determined according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources, an index value of the target frequency domain resource satisfies the following equation:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
In one possible implementation, in the determining the target frequency-domain resource according to the identifier of the terminal and the weight of each of the plurality of frequency-domain resources, the index value of the target frequency-domain resource is a minimum k value that satisfies the following equation:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a lower rounding operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight value of an ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
In a fifth aspect, an embodiment of the present application provides a network device, including a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the program including instructions for performing the steps in the method according to any one of the first aspect.
In a sixth aspect, an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the program including instructions for performing the steps in the method according to any one of the second aspects.
In a seventh aspect, an embodiment of the present application provides a chip, including: a processor configured to call and run a computer program from a memory, so that a device on which the chip is installed performs the method according to any one of the first and second aspects.
In an eighth aspect, the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of the first or second aspects.
In a ninth aspect, embodiments of the present application provide a computer program, which causes a computer to execute the method according to any one of the first or second aspects.
Drawings
Fig. 1 is a schematic diagram of a ue receiving a page according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a synchronization signal block according to an embodiment of the present application.
Fig. 3 is a schematic diagram illustrating a comparison between a ue receiving a page with/without a page advance indication according to an embodiment of the present application.
Fig. 4 is a schematic architecture diagram of a communication system according to an embodiment of the present application.
Fig. 5 is a schematic diagram of a transmission situation of a synchronization signal block over multiple initial downlink transmission part bandwidths according to an embodiment of the present application.
Fig. 6 is a diagram illustrating a page received over an initial downlink transmission segment bandwidth with a synchronization signal block sent according to an embodiment of the application.
Fig. 7 is a diagram of receiving a page over an initial downlink transmission segment bandwidth without a synchronization signal block transmission according to an embodiment of the present application.
Fig. 8 is a flowchart illustrating a communication method according to an embodiment of the present application.
Fig. 9 is a flowchart illustrating a method for sending and receiving a page according to an embodiment of the present application.
Fig. 10 is a flowchart illustrating another method for sending and receiving a page according to an embodiment of the present application.
Fig. 11 is a flowchart illustrating another paging sending and receiving method according to an embodiment of the present application.
Fig. 12 is a flowchart illustrating a further paging sending and receiving method according to an embodiment of the present application.
Fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Fig. 15 is a schematic structural diagram of a network device according to an embodiment of the present application.
Fig. 16 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "including" and "having," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described in this specification can be combined with other embodiments.
First, abbreviations and term definitions that may be referred to in the present application are provided to facilitate understanding by those skilled in the art, as shown in table 1.
TABLE 1 abbreviations and term definitions Table
Next, related technical knowledge to which embodiments of the present application relate is introduced herein. As described below:
1) brief introduction to NR and REDCAP
[ NR System service diversification terminal device ]
The New Radio (NR) of the Fifth Generation (5G) Mobile Communication technology is a global 5G standard designed based on a New air interface of Orthogonal Frequency Division Multiplexing (OFDM), which is also a very important cellular Mobile technology base of the next Generation, and the services of the 5G technology are very diverse and can be oriented to Enhanced Mobile Broadband (eMBB) services, Ultra-reliable Low-Latency Communication (URLLC) services, and mass Machine Communication (mtc) services, which may be Industrial Wireless Sensor Network (sn) services, Video monitoring (Video) services, and personal (wearable) services.
[ special requirements for machine terminals on cost ]
Machine type terminal devices often have higher requirements on cost and power consumption. For example, machine type terminal devices are generally implemented at low cost, because the data transmission rate requirement of services under an application scenario corresponding to the machine type terminal devices is not high, for example, the data transmission rate carried by a sensor under the IWSN is not greater than 2Mbps, which is enough to satisfy the IWSN services, the data transmission rate carried by an economical video monitoring camera is generally 2 to 4Mbps, the downlink peak rate of a terminal device under the wearable service, such as a smart watch, does not exceed 150Mbps, the uplink peak rate does not exceed 50Mbps, which is much lower than the peak rate of an NR stock (legacy) terminal device (e.g., an NR bb terminal device), based on which, the machine type terminal devices can reduce the implementation specification relative to the NR legacy terminal devices, thereby reducing the implementation cost; on the other hand, the reduction of the implementation cost of the machine terminal equipment is also helpful for expanding the market of the machine terminal equipment and promoting the development of the internet of things market. Currently, the 3GPP initiated research on low-capability (NR reduced capability) terminal devices under NR systems (reference: RP-193238), aiming at designing a terminal device meeting performance requirements of the internet of things market and having low cost/low implementation complexity for increasing applications of NR systems in the internet of things market with respect to the increasing internet of things market such as the above-mentioned IWSN, video monitoring and wearable services. For convenience of description, in the following part of this document, NR red ap User Equipment (UE) is taken as an example for illustration.
One way to reduce the cost of the terminal device is to reduce the channel bandwidth of the terminal device, or it can also be understood as reducing the bandwidth capability of the terminal device, i.e. the bandwidth capability of the NR legacy cp UE may be much smaller than the bandwidth capability of the NR legacy terminal device. Currently, NR legacy terminal devices, such as the terminal devices of Rel-15/Rel-16, must have a bandwidth capability of 100MHz, while NR legacy UEs may have a bandwidth capability of only 20MHz from the viewpoint of being able to receive an initial access signal transmitted by an NR base station and then access the NR system, and in some configurations of the NR system, the bandwidth capability of the NR legacy UEs may be further reduced to 5MHz or 10MHz, and at this time, the NR legacy UEs may also access the NR system. The bandwidth capability of no more than 20MHz can greatly reduce the cost of the REDCAP UE relative to the bandwidth capability of 100 MHz.
2) Over-the-air paging message reception
A UE in a radio resource control IDLE state (RRC _ IDLE) or a radio resource control INACTIVE state (RRC _ INACTIVE) supports receiving paging messages in a Discontinuous Reception (DRX) manner to reduce power consumption, which is also called a paging DRX, and a discontinuous reception cycle (DRX cycle) is configured by a network device. With DRX, a UE in RRC _ IDLE state or RRC _ INACTIVE state will only "wake up" for a predefined period of time to receive a paging message, and at other times can remain in a "sleep" state and stop receiving paging, which reduces power consumption and increases battery life of the UE.
For paging discontinuous reception (paging DRX), a UE in RRC _ IDLE state or RRC _ INACTIVE state only attempts to receive a Physical Downlink Control Channel (PDCCH) scrambled by a paging radio network temporary identifier (P-RNTI) at a certain Paging Occasion (PO) within each DRX cycle (also called paging cycle). In the NR system, a PO is a monitoring occasion (monitoring occasion) of a set of PDCCHs. One PO may contain a plurality of time slices (time slots), for example, a time slice may be a subframe or an Orthogonal Frequency Division Multiplexing (OFDM) symbol. The network device may send Downlink Control Information (DCI) for scheduling the paging message in the PO. In addition, a Paging Frame (PF) is a radio frame and may contain one or more POs or the start of a PO. When monitoring PO, the terminal equipment firstly determines the position of the PF and then determines the position of the PO related to the PF. It should be noted that a PO associated with a PF may start from within the PF or after the PF. The UE may determine the PO location that needs to be monitored according to the paging configuration parameter and the terminal identifier (UE _ ID), and specifically refer to NR and Long Term Evolution (LTE) prior art, which are irrelevant to the specific scheme of the present application and will not be described here.
A base station (gNB) receives a paging triggered by a Core Network (CN) or a Radio Access Network (RAN), and sends paging DCI to the UE, where the paging DCI includes scheduling information of a paging message, and the UE receives the paging message according to the paging DCI. Before that, the gNB sends configuration information to the UE, where the configuration information includes DRX cycle, PF offset, PO start location, the number of POs in a PF, and the like. How the UE determines the PO resource location according to these configurations may refer to the NR existing paging mechanism and will not be described herein.
Fig. 1 is a schematic diagram of a UE receiving a page according to an embodiment of the present application. In fig. 1, the UE monitors POs according to a periodic DRX cycle, and at the first PO in fig. 2, the UE does not monitor P-RNTI scrambling DCI. The UE continues to monitor the second PO in fig. 2, and the UE monitors the P-RNTI scrambled DCI and receives the paging message scheduled by the DCI.
3)BWP
The NR carrier bandwidth may be a minimum of 5MHz and a maximum of 400 MHz. If all UEs are required to support the maximum 400MHz, it will undoubtedly put higher requirements on the performance of the UEs, which is not favorable for reducing the cost of the UEs. Meanwhile, one UE cannot occupy the whole 400M bandwidth at the same time, and if the UE adopts a sampling rate corresponding to the 400M bandwidth, the performance is definitely wasted. Furthermore, a large bandwidth implies a high sampling rate, which implies a high power consumption.
To balance the cost and power consumption of the UE, and to better use the larger carrier bandwidth, NR adds the concept of fractional Bandwidth (BWP). BWP is defined as a combination of consecutive Resource Blocks (RBs) within one carrier. The BWP concept is introduced to divide part of the bandwidth within the whole large carrier bandwidth for UE to access and transmit data. The UE only needs to operate within the part of the bandwidth configured by the system.
BWPs are of various types, wherein one type of BWP relevant to the present application is referred to as initial (initial) BWP, wherein the BWP is for downlink reception initial DL (downlink) BWP, and the initial DL BWP (initial downlink transmission segment bandwidth) is for receiving paging messages, it should be understood that the initial DL BWP can also be used for receiving System Information Block (SIB), receiving Random Access Response (RAR) messages during random access, radio resource control connection setup (Msg4) and other Information. Existing NR systems are supporting only one initial DL BWP. Other types of BWP are referred to the prior art NR systems and are not referred to in this application and will not be described in detail here.
4)SSB
A Synchronization Signal and Physical Broadcast CHannel block (SSB), also referred to as a Synchronization Signal block, contains a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS) and a Physical Broadcast CHannel (PBCH). As shown in fig. 2, one SSB occupies 4 consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain. In the frequency domain, one SSB occupies 240 consecutive subcarriers, and the 240 subcarriers are numbered 0 to 239 in ascending order of frequency. The first OFDM symbol from the left carries the PSS, the subcarriers numbered 0, 1, …, 55, 183, 184, …, 239 are set to 0, and the subcarriers numbered 56, 57, …, 182 are the subcarriers occupied by the PSS; the 2 nd and 4th OFDM symbols from the left carry PBCH, and each of the 4 consecutive subcarriers has a demodulation reference signal (DMRS) corresponding to the PBCH; the 3 rd OFDM symbol from the left carries SSS and PBCH, the subcarriers numbered 56, 57, …, 182 are SSS, the subcarriers numbered 0, 1, …, 47, 192, 193, …, 239 are PBCH, and the rest are 0.
Again, to facilitate understanding of the embodiments of the present application, the technical problems specifically addressed by the present application are further analyzed and presented. As described below:
1) NR REDCAP UE supports multiple initial BWPs
Existing NR systems support only one initial DL BWP on which a NR legacy terminal (e.g., a NR eMBB terminal) receives paging messages. After the REDCAP UE is introduced into the NR system, the REDCAP UE also needs to receive a paging message. According to the foregoing description, the bandwidth capability of the NR legacy UE supports 100MHz, and as the number of legacy UEs accessing the network increases, the network device may configure an initial BWP with a larger bandwidth, thereby alleviating the paging capacity problem. For the REDCAP UE, the bandwidth capability is smaller, the current standard only supports the 20MHz bandwidth capability, and as the number of network accesses of the REDCAP UE increases, the problem of paging capacity exists when the network device configures one initial DL BWP, and for this problem, some companies propose that the REDCAP UE supports multiple initial DL BWPs.
2) NR supports PEI, reduces paging reception energy consumption
As shown in fig. 3, there is no paging of the UE in the first PO, but the UE is unaware of the paging and still listens, and if the UE can know in advance that the first PO has no paging, this part of the listening power consumption can be saved. To achieve this, for a UE in RRC IDLE state or RRC INACTIVE state, a signal, tentatively named Paging Early Indication (PEI), is planned to be introduced in the NR system. PEI design details, including signal form, are currently pending.
Briefly describing the work flow of PEI, if the gbb enables PEI features, corresponding to the case of PEI in fig. 3, the gbb will send PEI before PO, and the UE determines whether there is a page at a subsequent PO by detecting PEI. When the UE determines that the subsequent PO is not paged through detecting the PEI, the UE can be in a sleep state, when the UE determines that the subsequent PO is paged through detecting the PEI, the UE is in an active state, the PO is removed to receive paging scheduling information, and then the paging message scheduled by the scheduling information is received. Fig. 3 is a diagram with PEI indicating that the gbb enables PEI features and no PEI indicating that the gbb does not enable PEI features or that the gbb does not support PEI features. Since the information carried by the PEI is less, the duration of PEI detection by the UE is shorter, unnecessary monitoring can be reduced by the PEI, and the UE power saving is further realized.
From the above analysis, the problem of how PEI sends for configuration of multiple initial DL BWP scenarios in REDCAP is not related to the related discussion at present, nor is there any previous solution. The method and the device solve the problem of how to design the PEI in the scene that the REDCAP configures a plurality of initial DL BWPs.
Referring to fig. 4, fig. 4 is a schematic diagram of a communication system according to an embodiment of the present disclosure. The method is mainly applied to 4G and 5G mobile communication systems, and can also be applied to other communication systems as long as the entity in the communication system can send information and the other entities in the communication system can receive information. As shown in fig. 4, the base station and the terminal apparatuses 1 to 6 constitute a communication system in which the base station transmits information to one or more of the terminal apparatuses 1 to 6. Furthermore, terminal devices 4 to 6 also form a communication system in which terminal device 5 can transmit information to one or more of terminal devices 4 and 6.
The network element related to the present application includes a network device and a terminal device (also referred to as a terminal for short), where the network device includes a core network device and an access network device.
And the core network equipment is in data communication with the terminal equipment through the transfer of the access network equipment. The core network device corresponds to different devices in different systems. For example, in a fourth generation (4th generation, 4G) communication system, the Mobility Management Entity (MME) and/or the serving gateway (S-GW) may be associated; the 5G communication system may correspond to one or more of a unified data storage (UDR), a Unified Data Management (UDM), a network data analysis function (NWDAF), a network warehouse function (NRF), a Network Slice Selection Function (NSSF) network element, a Session Management Function (SMF), a User Plane Function (UPF), a core access and mobility management function (AMF), and a Policy Control Function (PCF) network element, etc.; in a future 6G communication system or other communication systems, the core network device may correspond to other network elements, which is not specifically limited in this application.
An access network device: the terminal equipment is used for receiving uplink signals from the terminal equipment or sending downlink signals to the terminal equipment; the access network device may be an LTE and/or NR access network device, and specifically may be a base station (NodeB), an evolved Node B (eNodeB), a base station in a 5G mobile communication system, a Next generation mobile communication base station (gNB), a base station in a future mobile communication system, or an access Node in a Wi-Fi system.
The terminal equipment: the terminal device is an entity for receiving or transmitting signals at a user side, and is used for sending uplink signals to the network device or receiving downlink signals from the network device; the intelligent sound box type train detection system mainly comprises a mobile phone, a car, a tablet personal computer, an intelligent sound box, a train detector, a gas station and other sensors, and mainly has the functions of collecting data (part of terminal equipment), receiving control information and downlink data of network equipment, sending electromagnetic waves and transmitting uplink data to the network equipment. Specifically, the UE may be used.
The application scenarios of the technical scheme provided by the application are analyzed below. It should be noted that, when a plurality of initial DL BWPs exist, no prior art can be referred to for how PEI sends, and the purpose of performing scene analysis here is to further illustrate what a specific problem scene is, and further lead to the technical solution provided by the present application, and the following contents of scene analysis should not be understood as prior art.
Based on the foregoing analysis, the present application mainly solves the problem how PEI sends when NR supports multiple initial DL BWPs (mainly for NR REDCAP scenario, and may also be extended to NR other scenarios, which is not limited herein).
Referring to fig. 5, fig. 5 is a schematic diagram illustrating an SSB transmission situation on a multi-initial DL BWP according to an embodiment of the present application. As shown in FIG. 5, NR supports multiple initial DL BWPs, but only one initial DL BWP must transmit SSBs, and the other initial DL BWPs do not have SSBs.
When paging is considered, the technical solution provided in the embodiments of the present application can be applied to, but is not limited to, the following scenarios:
scene one: as shown in fig. 6, the UE listens for a page on the first initial downlink transmission fractional bandwidth (initial DL BWP #0) in fig. 6, where the initial DL BWP # 0 may be referred to as the paging BWP of the UE, and the paging BWP of the UE has SSB transmitted thereon. In order to reduce unnecessary page receptions PEI is sent before the PO and is used to indicate whether the UE needs to listen to the PO behind the PEI. The PEI and the SSB are located in the same BWP, the UE wakes up before one or more SSBs before the PEI, obtains time-frequency synchronization according to the one or more SSBs, further receives the PEI, and judges whether to monitor paging after the PEI according to the indication of the PEI. Subsequent Radio Resource Measurement (RRM) may also be performed based on the SSB on the paging BWP. In this scenario, BWP handover is not involved, and BWP handover may also be referred to as BWP re-tuning (tuning), or BWP Radio Frequency (RF) re-tuning (tuning). However, in the REDCAP scenario, the existing SSBs of NR are multiplexed, so that REDCAP UE and NR legacy UE probably share the initial DL BWP for sending SSBs. Therefore, in the scenario, PEI design needs to consider the backward compatibility problem, or avoid affecting the communication of NR legacy UEs.
Scene two: as shown in fig. 7, the UE listens for a page on the second initial downlink transmission fractional bandwidth (initial DL BWP #1) in fig. 7, the initial DL BWP # 1 may be referred to as the paging BWP of the UE for short, and there is no SSB transmitted on the paging BWP of the UE. In this scenario, the PEI and the SSB are not located in the same BWP, the UE wakes up before the PEI, switches from the initial DL BWP # 1 to the second initial downlink transmission part bandwidth (initial DL BWP #0), receives one or more SSBs on the initial DL BWP # 0 to acquire time-frequency synchronization, then switches from the initial DL BWP # 0 to the initial DL BWP # 1 to receive the PEI, and determines whether to listen to a page after the PEI according to an indication of the PEI. The subsequent RRM also needs to switch from initial DL BWP # 1 to initial DL BWP # 0, and the receiving SSB does RRM. Multiple BWP handovers are involved in this scenario, which increases UE power consumption. Therefore, in this scenario, PEI design needs to consider reducing BWP switching.
For the analysis of scenario one and scenario two, it can be seen that requirements for PEI signal design are different between initial DL BWP where SSB is sent and initial DL BWP where SSB is not sent. Based on this, the present embodiment proposes the following: the initial DL BWP that sends SSBs and the initial DL BWP that does not send SSBs send two types of PEI signals. On initial DL BWP sending SSB, PEI signals adopt DCI structure, multiplex the existing public search space of NR and have no backward compatibility influence; on initial DL BWP which does not send SSB, PEI signal adopts sequence structure, and sequence carries time-frequency synchronization and RRM function, so UE can reside on current initial DL BWP, avoid BWP switching, and sequence can multiplex PSS and/or SSS in NR SSB.
Referring to fig. 8, fig. 8 is a flowchart illustrating a communication method according to an embodiment of the present application, where the method can be applied to the communication system shown in fig. 4, and the method includes, but is not limited to, the following steps:
801. the network equipment determines a target frequency domain resource and sends a target signal to a terminal on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a bandwidth of the first frequency domain resource includes a synchronization signal block, and a bandwidth of the second frequency domain resource does not include the synchronization signal block; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
As described above, the target frequency domain resources for paging are different for scenario one and scenario two, and the corresponding target signals are also different. In a scene, the target frequency domain resource is a first frequency domain resource, and the target signal is a first signal; in scenario two, the target frequency domain resource is a second frequency domain resource, and the target signal is a second signal. Thus, the first signal and the second signal differ in at least one of the following ways: signal type, function, time domain resource.
The target signal may be used for the page advance indication, and the target signal may be a PEI signal. The first frequency-domain resource may be an initial DL BWP transmitting SSBs, and the second frequency-domain resource may be an initial DL BWP not transmitting SSBs; the first signal adopts a DCI structure and multiplexes the existing public search space of NR; the second signal adopts a sequence structure, the sequence bears time-frequency synchronization and RRM functions, and the sequence can multiplex PSS and/or SSS in NR SSB.
802. A terminal determines a target frequency domain resource and receives a target signal from network equipment on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging reception, a synchronization signal block is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
Wherein the paging reception comprises at least one of: receiving a paging message, a System message change notification, an Earthquake and Tsunami Warning System (ETWS) indication, and a Commercial Mobile Alert System (CMAS) indication. The system message change notification, the ETWS indication, and the CMAS indication may be carried by a short message (short message). When the UE is in an RRC _ IDLE state, the UE can receive a paging message; when the UE is in the RRC _ IDLE state, the RRC _ INACTIVE state, or the RRC _ CONNECTED state, the UE may receive a system message change notification, an ETWS indication, and a CMAS indication.
It should be understood that the terminal may support low capability, and the network device may determine a target frequency domain resource for paging the terminal when paging the terminal, and then transmit a target signal and a paging message to the terminal on the target frequency domain resource, and in each paging cycle, the target signal may be used to indicate whether the terminal listens to one or more paging opportunities following the target signal in the paging cycle, and then receive the paging message in case that the terminal listens to one or more paging opportunities following the target signal in the paging cycle. Similarly, the terminal may also determine a target frequency domain resource for paging reception, that is, the terminal knows the target frequency domain resource used by the network device for paging, and then receives a target signal and a paging message from the network device on the target frequency domain resource, in each paging cycle, the target signal may be used to indicate whether the terminal listens to one or more paging opportunities following the target signal in the paging cycle, and if the terminal listens to one or more paging opportunities following the target signal in the paging cycle, the terminal may receive the paging message from the network device in the cycle.
In the embodiment of the application, the network equipment determines a target frequency domain resource and sends a target signal to the terminal on the target frequency domain resource; similarly, the terminal also determines a target frequency domain resource and receives a target signal from the network equipment on the target frequency domain resource; the target frequency domain resource may be a first frequency domain resource or a second frequency domain resource, the bandwidth of the first frequency domain resource includes a synchronization signal block, and the bandwidth of the second frequency domain resource does not include a synchronization signal block; on the network device side, the first frequency domain resource or the second frequency domain resource may be used for paging transmission; on the terminal side, the first frequency domain resource or the second frequency domain resource may be used for paging reception; the target signal can be a first signal or a second signal, the first signal is transmitted on the first frequency domain resource, the second signal is transmitted on the second frequency domain resource, and the first signal and the second signal have different signal types, functions and time domain resources; because the network equipment can configure a plurality of frequency domain resources for paging (including paging sending and paging receiving), the problem of paging capacity caused by the increase of the network access quantity of the low-power terminals is solved; moreover, when the target signal is transmitted on different frequency domain resources, at least one item of the target signal is different in signal type, function and time domain resource, so that when a plurality of frequency domain resources are configured for paging, the problem that low-energy terminal paging affects communication of a stock (legacy) terminal (namely, the problem of backward compatibility) and the problem that the low-energy terminal paging requires frequency domain resource switching is avoided. For example, the target signal may be a PEI signal, the target signal may be an initial DL BWP transmitting SSBs, and the second frequency-domain resource may be an initial DL BWP not transmitting SSBs. When the PEI signal is transmitted on the initial DL BWP of the SSB, the PEI signal and the SSB are positioned on the same initial DL BWP, the low-power terminal wakes up before one or more SSBs before the PEI signal, obtains time-frequency synchronization according to the one or more SSBs, and further receives the PEI signal; in this case, the low-power terminal multiplexes the existing SSB of the NR, and the paging of the low-power terminal and the paging of the stock terminal share the initial DL BWP for transmitting the SSB, so the paging of the low-power terminal needs to avoid affecting the communication of the stock terminal, and therefore, the PEI signal adopts a Downlink Control Information (DCI) structure, that is, the first signal is DCI information, and multiplexes the existing common search space of the NR, so that there is no backward compatibility influence. When the PEI signal is transmitted on the initial DL BWP which does not transmit the SSB, the low-power terminal needs to switch from the initial DL BWP which does not transmit the SSB to the initial DL BWP which transmits the SSB to receive the SSB, so as to acquire time-frequency synchronization; switching from the initial DL BWP transmitting SSB to the initial DL BWP not transmitting SSB, receiving PEI signals on the initial DL BWP not transmitting SSB, and increasing the power consumption of the terminal when the terminal switches between the initial DL BWPs; in this case, the PEI signal may adopt a sequence structure, and the sequence carries functions such as time-frequency synchronization and Radio Resource Measurement (RRM) which are originally carried by the SSB, so that the terminal may reside on the initial DL BWP which does not transmit the SSB, and avoid switching between the initial DL BWPs. The network equipment can configure a plurality of initial DL BWPs, thereby solving the problem of paging capacity; in addition, different requirements are considered for the initial DL BWP transmitting the SSB and the initial DL BWP not transmitting the SSB, and the PEI signal transmitted by the new PEI signal is designed differently, so that the problems of the new PEI signal and the new PEI signal can be overcome.
In a possible implementation manner, the first signal is a sequence, the second signal is a sequence, the sequence corresponding to the first signal is the same as the sequence corresponding to PSS and/or SSS in NR SSB, and the sequence corresponding to the second signal is the same as the sequence corresponding to PSS and/or SSS in NR SSB. For example, the first signal occupies N1 OFDM symbols, N1 OFDM symbols carry N1 sequences, at least one of the N1 sequences is the same as a sequence corresponding to PSS in NR SSB, and/or at least one of the N1 sequences is the same as a sequence corresponding to SSS in NR SSB; the second signal occupies N2 OFDM symbols, N2 OFDM symbols carry N2 sequences, at least one sequence of the N2 sequences is the same as a sequence corresponding to PSS in NR SSB, and/or at least one sequence of the N12 sequences is the same as a sequence corresponding to SSS in NR SSB, N1 and N2 are both positive integers, and N1 is smaller than N2.
The second signal is a sequence, that is, the sequence corresponding to the second signal is an NR system primary synchronization signal sequence and/or an NR system secondary synchronization sequence.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and when the first signal is generated, a Cyclic Redundancy Check (CRC) bit needs to be added; the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added.
In the embodiment of the application, the first signal is downlink control information, and when the terminal receives the downlink control information, reliability check is generally required to be performed to ensure reliable information transmission, so that when the first signal is generated, a cyclic redundancy check bit, that is, a cyclic redundancy check code, needs to be added; the second signal is a sequence, and when the terminal receives the sequence, the terminal does not need to perform reliability check, so that when the second signal is generated, cyclic redundancy check bits do not need to be added.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and channel coding is needed when the first signal is generated; the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
When the first signal is generated, channel coding is required, which means that when the first signal is generated, channel coding is required to be carried out on the first signal; the fact that channel coding is not required when the second signal is generated means that channel coding is not required for the second signal when the second signal is generated.
In the embodiment of the present application, the first signal is downlink control information, and when the downlink control information is generated, channel coding is generally required to be performed to combat noise and interference on a channel and improve transmission efficiency, so that when the first signal is generated, channel coding is required; the second signal is a sequence, and the sequence is generally generated without channel coding, so that the second signal is generated without channel coding.
In one possible implementation, in case there is a difference in functionality between the first signal and the second signal: the function of the first signal is to indicate whether the terminal listens for one or more paging opportunities following the first signal; the function of the second signal is to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic Gain Control (AGC), time synchronization, frequency synchronization, radio resource management measurements, beam training.
In this embodiment, the first signal is transmitted on the first frequency domain resource including the synchronization signal block in the bandwidth, so the function of the first signal is only to indicate whether the terminal monitors one or more paging opportunities after the first signal, and other functions (e.g., automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training) may multiplex the synchronization signal block in the first frequency domain resource bandwidth; the second signal is transmitted on a second frequency domain resource that does not include a synchronization signal block within the bandwidth, so the function of the second signal needs to include other functions (e.g., automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training) in addition to indicating whether the terminal listens to one or more paging opportunities following the second signal, so as to avoid the need for frequency domain resource switching by the terminal upon paging reception.
In one possible implementation, in case that the first signal and the second signal differ in terms of time domain resources: in one transmission, the number of time units (i.e., the number of OFDM symbols) occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
Illustratively, in one transmission, the number of time units occupied by the first signal in the time domain is smaller than the number of time units occupied by the second signal in the time domain.
In the embodiment of the application, the first signal and the second signal have different functions, so that the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain; specifically, the functions carried by the first signal are less than the functions carried by the second signal, so the number of time units occupied by the first signal in the time domain is less than the number of time units occupied by the second signal in the time domain, that is, the number of OFDM symbols occupied by the second signal in the time domain should be greater than the number of OFDM symbols occupied by the first signal in the time domain.
In one possible implementation, the second signal and the synchronization signal block are quasi co-located (QCL).
The quasi-co-location is mainly based on similarity of parameters such as average delay, delay spread, doppler shift (frequency offset), doppler spread, and spatial parameters of multiple Reference Signals (RSs), and one RS may use the channel estimation characteristic quantities estimated by other RSs.
The average delay (average delay) is used to estimate the timing, embodied as a time offset.
Delay spread (delay spread), known as Trms, is used to determine the type of radio channel and thus to select different algorithm parameters.
Doppler shift (Doppler shift) is used to estimate the frequency offset.
Doppler spread (Doppler spread) embodies the speed of motion of the UE and the direction to the base station for selecting different algorithm parameters.
The spatial RX parameters include direction angles, etc. for high frequency beamforming, which are defined as type by protocol.
The frequency domain related parameters comprise Trms, time offset and frequency domain related coefficients.
The frequency domain related parameters comprise Doppler spread, frequency offset and time domain related coefficients.
Illustratively, the quasi co-location type is any one of QCL-TypeA, QCL-TypeB, QCL-TypeC, and QCL-TypeD.
The NR supports 4 QCL-types, and is defined by a high-layer signaling parameter QCL-Type:
1)QCL-TypeA：{Doppler shift，Doppler spread，average delay，delay spread}。
2)QCL-TypeB：{Doppler shift，Doppler spread}。
3)QCL-TypeC：{average delay，Doppler shift}。
4)QCL-TypeD：{Spatial Rxparameter}。
in the embodiment of the present application, since the second signal is transmitted on the second frequency domain resource that does not include the synchronization signal block in the bandwidth, the second signal and the synchronization signal block can be designed to be quasi co-located, which is beneficial to avoiding the need of switching the frequency domain resource when the terminal receives the paging.
In a possible implementation manner, when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: reference signal received power, reference signal received quality.
Wherein the second signal is used for the terminal to obtain at least one of the following measurements: reference signal received power, reference signal received quality, that is: after receiving the second signal, the terminal may obtain at least one of the following measured values according to the second signal: reference signal received power, reference signal received quality.
In this embodiment, since the second signal is transmitted on the second frequency domain resource that does not include the synchronization signal block in the bandwidth, when the second signal is designed to be used for the radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: the second signal of the present application can also achieve the above measurement value, so that even when the terminal is prevented from paging and receiving the second frequency domain resource that does not include the synchronization signal block, the terminal does not need to switch from the second frequency domain resource that does not include the synchronization signal block to the frequency domain resource that includes the synchronization signal block to obtain the above measurement value.
In one possible implementation, the determining the target frequency domain resource includes: determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging transmission or reception; or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
The terminal reports the capability information of the terminal at the network equipment side to the network equipment. That is, before determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, the method further includes: the terminal sends the capability information of the terminal to the network equipment; the network device receives the terminal capability information from the terminal.
For the network device side, the multiple frequency domain resources are used for paging transmission; for the terminal side, the multiple frequency domain resources are used for paging reception.
In the embodiment of the present application, the plurality of frequency domain resources include a frequency domain resource including a synchronization signal block in a bandwidth and a frequency domain resource not including the synchronization signal block in the bandwidth, the target signal may be a first signal or a second signal, and the capability information of the terminal may indicate which frequency domain resource the terminal supports to receive the target signal or which target signal the terminal supports, so the network device side may determine the target frequency domain resource from the plurality of frequency domain resources for paging transmission according to the capability information of the terminal, so as to transmit the target signal to the terminal; and the terminal side may also determine a target frequency domain resource from a plurality of frequency domain resources for paging reception according to the capability information of the terminal, so as to receive a target signal from the network device, where the plurality of frequency domain resources for paging reception are also the plurality of frequency domain resources for paging transmission. If the terminal can support receiving the target signal on both the frequency domain resource including the synchronization signal block in the bandwidth and the frequency domain resource not including the synchronization signal block in the bandwidth, or the first signal terminal and the second signal terminal can support, the target frequency domain resource can be determined according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources, and in this case, the load balance is not considered; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources, and under the condition, considering load balancing. Therefore, the frequency domain resources required by the terminal paging can be determined according to the capability of the terminal, the identification of the terminal, the number of the frequency domain resources, the weight of the frequency domain resources and the like.
In one possible implementation manner, the capability information of the terminal includes: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; the determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal includes: if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resource which includes the synchronization signal block in the bandwidth; and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not include the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not include the synchronous signal block in the bandwidth.
The number of frequency domain resources including the synchronization signal block in the bandwidth included in the plurality of frequency domain resources may be one or more than one, and the number of frequency domain resources not including the synchronization signal block in the bandwidth included in the plurality of frequency domain resources may be one or more than one.
It should be understood that a terminal is supporting reception of pages on frequency domain resources within the bandwidth that include synchronization signal blocks, but a terminal does not necessarily support reception of pages on frequency domain resources within the bandwidth that do not include synchronization signal blocks; therefore, when the terminal does not support receiving a page on a frequency domain resource that does not include a synchronization signal block within the bandwidth, the target frequency domain resource, i.e., the first frequency domain resource, can only be determined from the frequency domain resources that include the synchronization signal block within the bandwidth.
In the embodiment of the application, if a target signal supported by a terminal is a first signal and/or the terminal does not support receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth, determining a first frequency domain resource from the frequency domain resource which includes the synchronization signal block in the bandwidth; if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not comprise the synchronization signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not comprise the synchronization signal block in the bandwidth; therefore, the frequency domain resource required by the terminal paging can be determined according to the capability of the terminal, and the paging is ensured to be normally carried out.
In one possible implementation, the determining the second frequency-domain resource from the frequency-domain resources within the bandwidth that do not include the synchronization signal block includes: and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth.
In this embodiment, there may be multiple frequency domain resources that do not include the synchronization signal block in the bandwidth, and therefore a specific frequency domain resource may be determined from the frequency domain resources that do not include the synchronization signal block in multiple bandwidths according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources that do not include the synchronization signal block in the bandwidth, and the determined frequency domain resource is used as the second frequency domain resource for terminal paging.
In a possible implementation manner, the determining the target frequency domain resource according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources includes: the index value of the target frequency domain resource satisfies the following formula:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
In the embodiment of the application, the index value of the target frequency domain resource can be calculated according to the identifier of the terminal, the number of the frequency domain resources, the number of the paging frames in one paging cycle and the number of the paging opportunities in one paging frame, so that the target frequency domain resource can be determined.
In one possible implementation manner, the determining the target frequency domain resource according to the identifier of the terminal and the weight of each of the plurality of frequency domain resources includes: the index value of the target frequency domain resource is a minimum k value satisfying the following formula:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a lower rounding operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight value of an ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
In the embodiment of the application, the index value of the target frequency domain resource can be calculated according to the identifier of the terminal, the number of frequency domain resources, the number of paging frames in a paging cycle, the number of paging opportunities in a paging frame and the weight of the frequency domain resource, so that the target frequency domain resource can be determined; in addition, when the target frequency domain resource is determined, the weight of the frequency domain resource is applied, so that the load balance is facilitated.
The technical solutions provided in the present application are described below by specific examples.
It should be understood that there is no RRC connection between the terminal in the RRC IDLE state and the network, and the terminal in the RRC INACTIVE state establishes an RRC connection with the network but the connection is suspended. When the network has downlink data to be sent to the terminal in the RRC _ IDLE state or the RRC _ INACTIVE state, the network needs to page the terminal through a paging (paging) procedure to notify the terminal to establish or recover the RRC connection, and then can perform data transmission. That is, paging is network initiated. In NR, the paging may be initiated by the core network 5GC, referred to as CN paging, or by the access network RAN, referred to as RAN paging. It should be noted that, depending on the capabilities of the terminal, the terminal may only have the capability of supporting the first signal or the second signal, or to say, the first signal and the second signal correspond to terminals with different capabilities respectively; the terminal may have the capability of supporting the first signal and the second signal at the same time, or the first signal and the second signal may not correspond to terminals with different capabilities, respectively. For example, two types of PEI correspond to different UE capabilities respectively, and the two types of PEI do not correspond to different UE capabilities or the UE has the capabilities of the two types of PEI simultaneously, where on an initial DL BWP transmitting the SSB, a PEI signal adopts a DCI structure; on initial DL BWP which does not send SSB, PEI adopts a sequence structure, the sequence carries time-frequency synchronization and RRM measurement functions, and the sequence can multiplex PSS and/or SSS in NR SSB. The following is described by examples 1 to 4, respectively.
Example 1: for CN paging, the terminal only has the capability of supporting the first signal or the second signal, that is, the terminal only supports the DCI type or the sequence type PEI signal.
Referring to fig. 9, fig. 9 is a schematic flowchart of a method for sending and receiving a page according to an embodiment of the present application, where the method includes, but is not limited to, the following steps:
901. and the terminal sends the capability information of the terminal to the core network equipment.
Specifically, the terminal reports the capability information of the terminal to the core network device, where the capability information of the terminal includes: the target signal supported by the terminal is the first signal or the second signal, and/or whether the terminal supports receiving pages on frequency domain resources within the bandwidth that do not include a synchronization signal block. For example, the target signal is a PEI signal, and the capability information of the terminal includes: the PEI signal type supported by the terminal is DCI or sequence and/or whether the terminal supports receiving paging on initial DL BWP that does not send SSB.
The capability information of the terminal may be transmitted to the core network device in a non-access stratum (NAS) signaling manner.
It should be understood that the access network device only transparently transmits and forwards the capability information of the terminal.
902. The core network device sends a paging message to the access network device.
Specifically, when the core network device needs to send downlink data or downlink NAS signaling to a terminal in a CM _ IDLE state, the core network device sends a paging message to all access network devices in all Timing Advance (TA) registered by the terminal. For example, an access and mobility management function (AMF) entity sends a paging message to all base stations (gnbs) in a TA with which the terminal is registered.
The paging message sent by the core network device to the access network device carries the capability information of the terminal.
903. The access network device determines a paging BWP and sends a paging message to the terminal on the paging BWP.
Specifically, the access network device determines a paging BWP of the terminal according to the capability information of the terminal, and then the access network device sends a PEI signal and a paging message to the terminal on the determined paging BWP. For example, the gNB sends a PEI signal and a paging message to the terminal on the determined paging BWP. Here, the paging BWP is also an initial DL BWP used for transmission or reception of paging.
It should be understood that if the capability information of the terminal is: the PEI signal supported by the terminal is DCI, and/or the terminal does not support receiving paging on the initial DL BWP which does not send SSB, and the paging BWP is the initial DL BWP which sends SSB; if the capability information of the terminal is: the PEI signal supported by the terminal is a sequence, and/or the terminal supports receiving paging on the initial DL BWP which does not send SSB, then the paging BWP is the initial DL BWP which does not send SSB. If there are more initial DL BWPs not sending SSBs, the paging BWP may be further determined according to the terminal identification and the number of initial DL BWPs not sending SSBs.
904. The terminal determines a paging BWP and receives a paging message from the access network device on the paging BWP.
Accordingly, the terminal also determines a paging BWP in a similar manner as the access network device, and receives a PEI signal from the access network device and a paging message on the paging BWP. For example, the terminal receives PEI and paging messages from the gNB on a certain paging BWP.
Wherein the terminal detects PEI on the determined paging BWP, receives a paging message (or needs to listen to PO) on the determined paging BWP if the detection result indicates that the terminal needs to receive the paging message (or needs to listen to PO), and does not receive the paging message (or does not need to listen to PO) on the determined paging BWP if the detection result indicates that the terminal does not need to receive the paging message (or does not need to listen to PO).
Example 2: for RAN paging, the terminal only has the capability of supporting the first signal or the second signal, that is, the terminal only supports the DCI type or sequence type PEI signal.
Referring to fig. 10, fig. 10 is a schematic flowchart of another method for sending and receiving a page according to an embodiment of the present application, where the method includes, but is not limited to, the following steps:
1001. and the terminal sends the capability information of the terminal to the first network equipment.
Specifically, the terminal reports terminal capability information to the first network device, where the terminal capability information includes: the PEI signal type supported by the terminal is DCI or sequence and/or whether the terminal supports receiving paging on initial DL BWP that does not send SSB. The first network device is a network device originally serving the terminal, for example, the first network device is an original serving base station (gNB), that is, a base station (last serving cell gNB) of a last serving cell.
1002. The first network device sends a paging message to the second network device.
Specifically, a first network device sends a paging message to a second network device, where the paging message sent by the first network device to the second network device includes capability information of the terminal; for example, the serving gNB notifies all the gnbs in the RNA to send a RAN paging message, where the RAN paging message carries capability information of the terminal, and the second network device is also any one of all the gnbs in the RNA.
1003. The second network device determines a paging BWP and transmits a paging message to the terminal over the paging BWP.
Specifically, the second network device determines a paging BWP according to the capability information of the terminal, and sends a paging message to the terminal on the paging BWP; for example, the gNB determines a paging BWP of the terminal according to the capability information of the terminal in the RAN paging message, and the gNB sends a PEI signal and the paging message to the terminal on the determined paging BWP.
It should be understood that if the capability information of the terminal is: the PEI signal supported by the terminal is DCI, and/or the terminal does not support receiving paging on the initial DL BWP which does not send SSB, and the paging BWP is the initial DL BWP which sends SSB; if the capability information of the terminal is: the PEI signal supported by the terminal is a sequence, and/or the terminal supports receiving paging on the initial DL BWP which does not send SSB, then the paging BWP is the initial DL BWP which does not send SSB. If there are more initial DL BWPs not sending SSBs, the paging BWP may be further determined according to the terminal identification and the number of initial DL BWPs not sending SSBs.
1004. The terminal determines a paging BWP and receives a paging message from the second network device over the paging BWP.
Accordingly, the terminal also determines a paging BWP in a similar manner to the second network device, and receives a PEI signal from the second network device and a paging message on the paging BWP. For example, the terminal receives PEI and paging messages from the gNB on a certain paging BWP.
Wherein the terminal detects PEI on the determined paging BWP, receives a paging message (or needs to listen to PO) on the determined paging BWP if the detection result indicates that the terminal needs to receive the paging message (or needs to listen to PO), and does not receive the paging message (or does not need to listen to PO) on the determined paging BWP if the detection result indicates that the terminal does not need to receive the paging message (or does not need to listen to PO).
Example 3: for CN paging, the terminal has the capability of supporting the first signal and the second signal at the same time, that is, the terminal supports the DCI type and the sequence type PEI signal at the same time.
Referring to fig. 11, fig. 11 is a schematic flowchart of another method for sending and receiving a page according to an embodiment of the present application, where the method includes, but is not limited to, the following steps:
1101. the core network device sends a paging message to the access network device.
Specifically, when the core network device needs to send downlink data or downlink NAS signaling to a terminal in a CM _ IDLE state, the core network device sends a paging message to all access network devices in all Timing Advance (TA) registered by the terminal. For example, an access and mobility management function (AMF) entity sends a paging message to all base stations (gnbs) in a TA registered by a terminal.
1102. The access network device determines a paging BWP and sends a paging message to the terminal on the paging BWP.
Specifically, the access network device determines a paging BWP for paging the terminal according to a preset rule, and if the determined paging BWP is sent by an SSB, determines that the PEI signal is DCI; if no SSB is transmitted on the determined paging BWP, the PEI signal is determined to be a sequence. The access network equipment sends a PEI signal and a paging message to the terminal on the determined paging BWP; for example, the gNB sends PEI and paging messages to the terminal on the determined paging BWP.
In one possible implementation, if load balancing is not considered, the paging BWP may be determined according to the identity of the terminal and the number of initial DL BWPs used for paging transmission or reception, and the index value of the paging BWP satisfies the following equation:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
PBWP is an index value of the paging BWP, floor represents a rounding-down operation, UE _ ID represents an identifier of a terminal, N represents the number of paging frames in a paging cycle, Ns represents the number of paging opportunities in a paging frame, mod represents a modulo operation, and Nn represents the number of initial DL BWPs used for paging transmission or reception.
In one possible implementation, if load balancing is considered, a weight w (i) may be configured for each initial DL BWP used for paging transmission or reception, and the smallest BWP index k satisfying the following formula is the paging BWP.
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
Where, k ≦ Nn, Nn represents the number of initial DL BWPs for paging transmission or reception, floor represents a floor rounding operation, UE _ ID represents the identity of the terminal (e.g., 5G-S-TMSI mod 1024), N represents the number of paging frames within one paging cycle, Ns represents the number of paging opportunities within one paging frame, mod represents a modulo operation, W represents the total weight value of the initial DL BWPs for paging transmission or reception, W ═ W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents the weight of the ith initial DL BWP in the initial DL BWPs for paging transmission or reception, and i is an integer greater than or equal to zero and less than or equal to k-1.
1103. The terminal determines a paging BWP and receives a paging message from the access network device on the paging BWP.
Accordingly, the terminal also determines a paging BWP in a similar manner as the access network device, and receives a PEI signal from the access network device and a paging message on the paging BWP. For example, the terminal receives PEI and paging messages from the gNB on the determined paging BWP. If SSB is sent on the determined paging BWP, the terminal determines that the PEI signal is DCI; if the determined paging BWP has not been transmitted by the SSB, the terminal determines the PEI signal as a sequence.
Wherein the terminal detects PEI on the determined paging BWP, receives a paging message (or needs to listen to PO) on the determined paging BWP if the detection result indicates that the terminal needs to receive the paging message (or needs to listen to PO), and does not receive the paging message (or does not need to listen to PO) on the determined paging BWP if the detection result indicates that the terminal does not need to receive the paging message (or does not need to listen to PO).
Example 4: for RAN paging, the terminal has the capability of supporting the first signal and the second signal at the same time, that is, the terminal supports the DCI type and the sequence type PEI signal at the same time.
Referring to fig. 12, fig. 12 is a schematic flowchart of another method for sending and receiving a page according to an embodiment of the present application, where the method includes, but is not limited to, the following steps:
1201. the first network device sends a paging message to the second network device.
Specifically, a first network device sends a paging message to a second network device; the first network device is a network device originally serving the terminal, for example, the first network device is an original serving base station (gNB), that is, a base station of a last serving cell gNB, the original serving gNB notifies all gnbs in the RNA to send a RAN paging message, and the second network device is any one of all gnbs in the RNA.
1202. The second network device determines a paging BWP and transmits a paging message to the terminal over the paging BWP.
Specifically, the second network device determines a paging BWP for paging the terminal according to a preset rule, and if the determined paging BWP is sent by an SSB, determines that the PEI signal is DCI; if no SSB is transmitted on the determined paging BWP, the PEI signal is determined to be in sequence. The second network equipment sends a PEI signal and a paging message to the terminal on the determined paging BWP; for example, the gNB sends PEI and paging messages to the terminal on the determined paging BWP.
In one possible implementation, if load balancing is not considered, the paging BWP may be determined according to the identity of the terminal and the number of initial DL BWPs used for paging transmission or reception, and the index value of the paging BWP satisfies the following equation:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
PBWP is an index value of the paging BWP, floor represents a lower rounding operation, UE _ ID represents an identifier of a terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, and Nn represents the number of initial DL BWPs used for paging transmission or reception.
In one possible implementation, if load balancing is considered, a weight w (i) may be configured for each initial DL BWP used for paging transmission or reception, and the smallest BWP index k satisfying the following formula is the paging BWP.
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
Where, k ≦ Nn, Nn represents the number of initial DL BWPs for paging transmission or reception, floor represents a floor rounding operation, UE _ ID represents the identity of the terminal (e.g., 5G-S-TMSI mod 1024), N represents the number of paging frames within one paging cycle, Ns represents the number of paging opportunities within one paging frame, mod represents a modulo operation, W represents the total weight value of the initial DL BWPs for paging transmission or reception, W ═ W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents the weight of the ith initial DL BWP in the initial DL BWPs for paging transmission or reception, and i is an integer greater than or equal to zero and less than or equal to k-1.
1203. The terminal determines a paging BWP and receives a paging message from the second network device over the paging BWP.
Accordingly, the terminal also determines a paging BWP in a similar manner to the second network device, and receives a PEI signal from the second network device and a paging message on the paging BWP. For example, the terminal receives PEI and paging messages from the gNB on the determined paging BWP. If the SSB is sent on the paging BWP, the terminal determines that the PEI signal is DCI; if the determined paging BWP has not been transmitted by the SSB, the terminal determines the PEI signal as a sequence.
Wherein the terminal detects PEI on the determined paging BWP, receives a paging message (or needs to listen to PO) on the determined paging BWP if the detection result indicates that the terminal needs to receive the paging message (or needs to listen to PO), and does not receive the paging message (or does not need to listen to PO) on the determined paging BWP if the detection result indicates that the terminal does not need to receive the paging message (or does not need to listen to PO).
In summary, the present application embodiment considers different requirements for the initial DL BWP for sending SSBs and the initial DL BWP for not sending SSBs, and PEI adopts different designs, which can overcome the respective problems. For example, on an initial DL BWP sending SSB, a PEI signal adopts a DCI structure, multiplexes an existing public search space of NR, and has no backward compatibility influence; on the initial DL BWP not sending SSB, the PEI signal adopts a sequence structure, and the sequence carries the time-frequency synchronization and RRM measurement functions, so that the terminal can reside on the current initial DL BWP, avoiding the initial DL BWP handover.
Referring to fig. 13, fig. 13 is a schematic structural diagram of a communication apparatus 1300 according to an embodiment of the present disclosure, where the communication apparatus 1300 is applied to a network device, and the communication apparatus 1300 may include a processing unit 1301 and a transceiving unit 1302; wherein, the communication apparatus 1300 executes any step executed by the network device (including the access network device and the core network device) in the method embodiments shown in fig. 8 to fig. 12 through the processing unit 1301; and when data transmission such as transceiving is performed, a corresponding operation is completed through the transceiving unit 1302. The details will be described below.
The processing unit 1301 is configured to determine a target frequency domain resource; the transceiving unit 1302 is configured to send a target signal to a terminal on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a bandwidth of the first frequency domain resource includes a synchronization signal block, and a bandwidth of the second frequency domain resource does not include the synchronization signal block; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and when the first signal is generated, a cyclic redundancy check bit needs to be added; the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and channel coding is needed when the first signal is generated; the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
In a possible implementation, in the case where the first signal and the second signal differ in function: the function of the first signal is to indicate whether the terminal listens for one or more paging opportunities following the first signal; the function of the second signal is to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training.
In one possible implementation, in case that the first signal and the second signal differ in terms of time domain resources: in one transmission, the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
In one possible implementation, the second signal and the synchronization signal block are quasi co-located.
In a possible implementation manner, when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: reference signal received power, reference signal received quality.
In a possible implementation manner, in the aspect of determining the target frequency domain resource, the processing unit 1301 is specifically configured to: determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging transmission; or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
In a possible implementation manner, the capability information of the terminal includes: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; in the aspect of determining the target frequency domain resource from multiple frequency domain resources according to the capability information of the terminal, the processing unit 1301 is specifically configured to: if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resources which include the synchronization signal block in the bandwidth; and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not include the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not include the synchronous signal block in the bandwidth.
In a possible implementation manner, in the aspect of determining the second frequency domain resource from the frequency domain resources not including the synchronization signal block in the bandwidth, the processing unit 1301 is specifically configured to: and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth.
In a possible implementation manner, in the aspect that the target frequency domain resource is determined according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources, an index value of the target frequency domain resource satisfies the following equation:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
In one possible implementation manner, in the aspect of determining the target frequency-domain resource according to the identifier of the terminal and the weight of each of the plurality of frequency-domain resources, the index value of the target frequency-domain resource is a minimum k value that satisfies the following equation:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where, k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a rounding-down operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W is W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight of the ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
The communication device 1300 may further include a storage unit 1303 for storing program codes and data of the terminal. The processing unit 1301 may be a processor, the transceiving unit 1302 may be a transceiver, and the storage unit 1303 may be a memory.
It should be noted that the implementation of each unit may also correspond to the corresponding description of the method embodiments shown in fig. 8 to 12.
In the embodiment of the application, the network equipment determines a target frequency domain resource and sends a target signal to the terminal on the target frequency domain resource; similarly, the terminal also determines a target frequency domain resource and receives a target signal from the network equipment on the target frequency domain resource; the target frequency domain resource may be a first frequency domain resource or a second frequency domain resource, the bandwidth of the first frequency domain resource includes a synchronization signal block, and the bandwidth of the second frequency domain resource does not include a synchronization signal block; on the network device side, the first frequency domain resource or the second frequency domain resource may be used for paging transmission; on the terminal side, the first frequency domain resource or the second frequency domain resource may be used for paging reception; the target signal can be a first signal or a second signal, the first signal is transmitted on the first frequency domain resource, the second signal is transmitted on the second frequency domain resource, and the first signal and the second signal have at least one difference in terms of signal type, function and time domain resource; because the network equipment can configure a plurality of frequency domain resources for paging (including paging sending and paging receiving), the problem of paging capacity caused by the increase of the network access quantity of the low-energy terminals is solved; moreover, when the target signal is transmitted on different frequency domain resources, at least one item of the target signal is different in signal type, function and time domain resource, so that when a plurality of frequency domain resources are configured for paging, the problem that low-energy terminal paging affects communication of a stock (legacy) terminal (namely, the problem of backward compatibility) and the problem that the low-energy terminal paging requires frequency domain resource switching is avoided.
Referring to fig. 14, fig. 14 is a schematic structural diagram of a communication apparatus 1400 provided in an embodiment of the present application, where the communication apparatus 1400 is applied to a terminal, and the communication apparatus 1400 may include a processing unit 1401 and a transceiver unit 1402, where the processing unit 1401 is configured to perform any step performed by the terminal in the method embodiments shown in fig. 8 to 12, and when data transmission such as acquisition is performed, the transceiver unit 1402 may be selectively invoked to complete a corresponding operation. The details will be described below.
The processing unit 1401 is configured to determine a target frequency domain resource; a transceiving unit 1402, configured to receive a target signal from a network device on the target frequency domain resource; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging reception, a synchronization signal block is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and when the first signal is generated, a cyclic redundancy check bit needs to be added; the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added.
In one possible implementation, in case there is a difference in signal type between the first signal and the second signal: the first signal is downlink control information, and channel coding is needed when the first signal is generated; the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
In one possible implementation, in case there is a difference in functionality between the first signal and the second signal: the function of the first signal is to indicate whether the terminal listens for one or more paging opportunities following the first signal; the function of the second signal is to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training.
In one possible implementation, in case that the first signal and the second signal differ in terms of time domain resources: in one transmission, the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
In one possible implementation, the second signal and the synchronization signal block are quasi co-located.
In a possible implementation manner, when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurement values: reference signal received power, reference signal received quality.
In a possible implementation manner, in terms of the determining the target frequency domain resource, the processing unit 1401 is specifically configured to: determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging reception; or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources; or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
In one possible implementation manner, the capability information of the terminal includes: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; in the aspect of determining the target frequency domain resource from multiple frequency domain resources according to the capability information of the terminal, the processing unit 1401 is specifically configured to: if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resources which include the synchronization signal block in the bandwidth; and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not comprise the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not comprise the synchronous signal block in the bandwidth.
In one possible implementation manner, in terms of determining the second frequency domain resource from the frequency domain resources not including the synchronization signal block in the bandwidth, the processing unit 1401 is specifically configured to: and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth.
In a possible implementation manner, in the aspect that the target frequency domain resource is determined according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources, an index value of the target frequency domain resource satisfies the following equation:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
In one possible implementation manner, in the aspect of determining the target frequency-domain resource according to the identifier of the terminal and the weight of each of the plurality of frequency-domain resources, the index value of the target frequency-domain resource is a minimum k value that satisfies the following equation:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where, k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a rounding-down operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W is W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight of the ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
The communication device 1400 may further include a storage unit 1403 for storing program codes and data of the terminal, among other things. The processing unit 1401 may be a processor, the transceiving unit 1402 may be a transceiver, and the storage unit 1403 may be a memory.
It should be noted that the implementation of each unit may also correspond to the corresponding description of the method embodiments shown in fig. 8 to 12.
In the embodiment of the application, the network equipment determines a target frequency domain resource and sends a target signal to the terminal on the target frequency domain resource; similarly, the terminal also determines a target frequency domain resource and receives a target signal from the network equipment on the target frequency domain resource; the target frequency domain resource may be a first frequency domain resource or a second frequency domain resource, the bandwidth of the first frequency domain resource includes a synchronization signal block, and the bandwidth of the second frequency domain resource does not include a synchronization signal block; on the network device side, the first frequency domain resource or the second frequency domain resource may be used for paging transmission; on the terminal side, the first frequency domain resource or the second frequency domain resource may be used for paging reception; the target signal can be a first signal or a second signal, the first signal is transmitted on the first frequency domain resource, the second signal is transmitted on the second frequency domain resource, and the first signal and the second signal have different signal types, functions and time domain resources; because the network equipment can configure a plurality of frequency domain resources for paging (including paging sending and paging receiving), the problem of paging capacity caused by the increase of the network access quantity of the low-power terminals is solved; moreover, when the target signal is transmitted on different frequency domain resources, at least one item of the target signal is different in signal type, function and time domain resource, so that when a plurality of frequency domain resources are configured for paging, the problem that low-energy terminal paging affects communication of a stock (legacy) terminal (namely, the problem of backward compatibility) and the problem that the low-energy terminal paging requires frequency domain resource switching is avoided.
Referring to fig. 15, fig. 15 is a schematic structural diagram of a network device according to an embodiment of the present disclosure, where the network device 1510 includes a transceiver 1511, a processor 1512, and a memory 1513, and the transceiver 1511, the processor 1512, and the memory 1513 are connected to each other through a bus 1514.
The memory 1513 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), and the memory 1513 is used for related instructions and data.
The transceiver 1511 is used for receiving and transmitting data.
The processor 1512 may be one or more Central Processing Units (CPUs), and in the case that the processor 1512 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
The processor 1512 in the network device 1510 is configured to read the program code stored in the memory 1513, and perform the following operations: determining target frequency domain resources, and sending a target signal to a terminal on the target frequency domain resources; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a bandwidth of the first frequency domain resource includes a synchronization signal block, and a bandwidth of the second frequency domain resource does not include the synchronization signal block; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
It should be noted that, the implementation of each operation may also correspond to the corresponding description of the method embodiments described with reference to fig. 8 to 12.
In the embodiment of the application, the network equipment determines a target frequency domain resource and sends a target signal to the terminal on the target frequency domain resource; similarly, the terminal also determines a target frequency domain resource and receives a target signal from the network equipment on the target frequency domain resource; the target frequency domain resource may be a first frequency domain resource or a second frequency domain resource, the bandwidth of the first frequency domain resource includes a synchronization signal block, and the bandwidth of the second frequency domain resource does not include a synchronization signal block; on the network device side, the first frequency domain resource or the second frequency domain resource may be used for paging transmission; on the terminal side, the first frequency domain resource or the second frequency domain resource may be used for paging reception; the target signal can be a first signal or a second signal, the first signal is transmitted on the first frequency domain resource, the second signal is transmitted on the second frequency domain resource, and the first signal and the second signal have at least one difference in terms of signal type, function and time domain resource; because the network equipment can configure a plurality of frequency domain resources for paging (including paging sending and paging receiving), the problem of paging capacity caused by the increase of the network access quantity of the low-energy terminals is solved; moreover, when the target signal is transmitted on different frequency domain resources, at least one item of the target signal is different in signal type, function and time domain resource, so that when a plurality of frequency domain resources are configured for paging, the problem that low-energy terminal paging affects communication of a stock (legacy) terminal (namely, the problem of backward compatibility) and the problem that the low-energy terminal paging requires frequency domain resource switching is avoided.
Referring to fig. 16, fig. 16 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure, where the terminal 1610 includes a transceiver 1611, a processor 1612 and a memory 1613, and the transceiver 1611, the processor 1612 and the memory 1613 are connected to each other through a bus 1614.
The memory 1613 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 disk read-only memory (CD-ROM), and the memory 1613 is used for related instructions and data.
The transceiver 1611 is used to receive and transmit data.
The processor 1612 may be one or more Central Processing Units (CPUs), and in the case where the processor 1612 is one CPU, the CPU may be a single core CPU or a multi-core CPU.
The processor 1612 in the terminal 1610 is configured to read the program code stored in the memory 1613, and perform the following operations: determining a target frequency domain resource on which a target signal from a network device is received; the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging reception, a synchronization signal block is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource; if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal; if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal; the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
It should be noted that, the implementation of each operation may also correspond to the corresponding description of the method embodiments described with reference to fig. 8 to 12.
In the embodiment of the application, the network equipment determines a target frequency domain resource and sends a target signal to the terminal on the target frequency domain resource; similarly, the terminal also determines a target frequency domain resource and receives a target signal from the network equipment on the target frequency domain resource; the target frequency domain resource may be a first frequency domain resource or a second frequency domain resource, the bandwidth of the first frequency domain resource includes a synchronization signal block, and the bandwidth of the second frequency domain resource does not include a synchronization signal block; on the network device side, the first frequency domain resource or the second frequency domain resource may be used for paging transmission; on the terminal side, the first frequency domain resource or the second frequency domain resource may be used for paging reception; the target signal can be a first signal or a second signal, the first signal is transmitted on the first frequency domain resource, the second signal is transmitted on the second frequency domain resource, and the first signal and the second signal have at least one difference in terms of signal type, function and time domain resource; because the network equipment can configure a plurality of frequency domain resources for paging (including paging sending and paging receiving), the problem of paging capacity caused by the increase of the network access quantity of the low-energy terminals is solved; moreover, when the target signal is transmitted on different frequency domain resources, at least one item of the target signal is different in signal type, function and time domain resource, so that when a plurality of frequency domain resources are configured for paging, the problem that the paging of a low-energy terminal affects the communication of a storage (legacy) terminal (namely, the problem of backward compatibility) and the problem that the paging of the low-energy terminal needs the switching of the frequency domain resources is avoided.
The embodiment of the present application further provides a chip, which includes at least one processor, a memory and an interface circuit, where the memory, the transceiver and the at least one processor are interconnected by a line, and the at least one memory stores a computer program; when the computer program is executed by the processor, the method flows shown in the method embodiments are implemented.
An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program runs on an electronic device, the method flows shown in the above method embodiments are implemented.
Embodiments of the present application further provide a computer program, where when the computer program runs on an electronic device, the method flows shown in the foregoing method embodiments are implemented.
It should be understood that the Processor mentioned in the embodiments of the present Application may be a Central Processing Unit (CPU), and may also be other general purpose processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), Field Programmable Gate Arrays (FPGA) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM).
It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) is integrated in the processor.
It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The above-described functions, if implemented in the form of software functional units and sold or used as a separate product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-described method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs. In addition, the terms and explanations in the embodiments of the present application may refer to the corresponding descriptions in the other embodiments.
The modules in the device can be merged, divided and deleted according to actual needs.
The above description, the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (30)
1. A communication method applied to a network device, the method comprising:
determining target frequency domain resources;
transmitting a target signal to a terminal on the target frequency domain resource;
the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a bandwidth of the first frequency domain resource includes a synchronization signal block, and a bandwidth of the second frequency domain resource does not include the synchronization signal block;
if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal;
if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal;
the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
2. The method of claim 1, wherein if there is a difference in signal type between the first signal and the second signal:
the first signal is downlink control information, and when the first signal is generated, a cyclic redundancy check bit needs to be added;
the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added.
3. Method according to claim 1 or 2, characterized in that in case there is a difference in signal type between the first signal and the second signal:
the first signal is downlink control information, and channel coding is needed when the first signal is generated;
the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
4. A method according to any one of claims 1-3, wherein, in the event that the first signal and the second signal differ in function:
the function of the first signal is to indicate whether the terminal listens for one or more paging opportunities following the first signal;
the function of the second signal is to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, and beam training.
5. The method according to any of claims 1-4, wherein in case there is a difference in time domain resources between the first signal and the second signal:
in one transmission, the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
6. The method of any of claims 1-5, wherein the second signal and the synchronization signal block are quasi co-located.
7. The method according to any of claims 1-6, wherein when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurements: reference signal received power, reference signal received quality.
8. The method according to any of claims 1-7, wherein the determining a target frequency domain resource comprises:
determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging transmission;
or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources;
or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
9. The method of claim 8, wherein the capability information of the terminal comprises: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; the determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal includes:
if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resources which include the synchronization signal block in the bandwidth;
and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not comprise the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not comprise the synchronous signal block in the bandwidth.
10. The method of claim 9, wherein the determining the second frequency domain resource from frequency domain resources within the bandwidth that do not include a synchronization signal block comprises:
and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources not including the synchronization signal block in the bandwidth.
11. The method of claim 8, wherein the determining the target frequency domain resource according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources comprises:
the index value of the target frequency domain resource satisfies the following formula:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
12. The method of claim 8, wherein determining the target frequency-domain resource based on the identity of the terminal and the weight of each of the plurality of frequency-domain resources comprises:
the index value of the target frequency domain resource is a minimum k value satisfying the following formula:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where, k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a rounding-down operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W is W (0) + W (1) + … + W (i) + … + W (Nn-1), W (i) represents a weight of the ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
13. A communication method, applied to a terminal, the method comprising:
determining target frequency domain resources;
receiving a target signal from a network device on the target frequency domain resource;
the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging reception, a synchronization signal block is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource;
if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal;
if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal;
the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
14. The method of claim 13, wherein if there is a difference in signal type between the first signal and the second signal:
the first signal is downlink control information, and when the first signal is generated, a cyclic redundancy check bit needs to be added;
the second signal is a sequence, and when the second signal is generated, cyclic redundancy check bits do not need to be added.
15. Method according to claim 13 or 14, characterized in that in case there is a difference in signal type between the first signal and the second signal:
the first signal is downlink control information, and channel coding is needed when the first signal is generated;
the second signal is a sequence, and when the second signal is generated, channel coding is not needed.
16. The method of any one of claims 13-15, wherein, when the first signal and the second signal differ in function:
the first signal functions to indicate whether the terminal listens for one or more paging opportunities following the first signal;
the function of the second signal is to indicate whether the terminal listens for one or more paging opportunities following the second signal, and at least one of: automatic gain control, time synchronization, frequency synchronization, radio resource management measurement, beam training.
17. The method according to any of claims 13-16, wherein in case there is a difference in time domain resources between the first signal and the second signal:
in one transmission, the number of time units occupied by the first signal in the time domain is different from the number of time units occupied by the second signal in the time domain.
18. The method of any of claims 13-17, wherein the second signal and the synchronization signal block are quasi co-located.
19. The method according to any of claims 13-18, wherein when the second signal is used for radio resource management measurement, the second signal is used for the terminal to obtain at least one of the following measurements: reference signal received power, reference signal received quality.
20. The method according to any of claims 13-19, wherein the determining a target frequency domain resource comprises:
determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal, wherein the plurality of frequency domain resources are used for paging reception;
or determining the target frequency domain resource according to the identifier of the terminal and the number of the frequency domain resources in the plurality of frequency domain resources;
or determining the target frequency domain resource according to the identifier of the terminal and the weight of each frequency domain resource in the plurality of frequency domain resources.
21. The method of claim 20, wherein the capability information of the terminal comprises: the target signal supported by the terminal is a first signal or a second signal, and/or whether the terminal supports receiving paging on a frequency domain resource which does not include a synchronization signal block in a bandwidth; the plurality of frequency domain resources include frequency domain resources within a bandwidth that include a synchronization signal block and frequency domain resources within a bandwidth that do not include a synchronization signal block; the determining the target frequency domain resource from a plurality of frequency domain resources according to the capability information of the terminal includes:
if the target signal supported by the terminal is a first signal and/or the terminal does not support receiving paging on the frequency domain resource which does not include the synchronization signal block in the bandwidth, determining the first frequency domain resource from the frequency domain resources which include the synchronization signal block in the bandwidth;
and if the target signal supported by the terminal is a second signal and/or the terminal supports receiving paging on the frequency domain resource which does not include the synchronous signal block in the bandwidth, determining the second frequency domain resource from the frequency domain resource which does not include the synchronous signal block in the bandwidth.
22. The method of claim 21, wherein the determining the second frequency-domain resource from frequency-domain resources within the bandwidth that do not include a synchronization signal block comprises:
and determining the second frequency domain resource according to the identifier of the terminal and the number of frequency domain resources corresponding to the frequency domain resources which do not comprise the synchronization signal block in the bandwidth.
23. The method of claim 20, wherein the determining the target frequency domain resource according to the identifier of the terminal and the number of frequency domain resources in the plurality of frequency domain resources comprises:
the index value of the target frequency domain resource satisfies the following formula:
PBWP＝floor(UE_ID/(N*Ns))mod Nn；
the PBWP is an index value of the target frequency domain resource, the floor indicates a lower rounding operation, the UE _ ID indicates an identifier of the terminal, the N indicates the number of paging frames in one paging cycle, the Ns indicates the number of paging opportunities in one paging frame, the mod indicates a modulo operation, and the Nn indicates the number of frequency domain resources corresponding to the plurality of frequency domain resources.
24. The method of claim 20, wherein determining the target frequency-domain resource based on the identification of the terminal and the weight for each of the plurality of frequency-domain resources comprises:
the index value of the target frequency domain resource is a minimum k value satisfying the following formula:
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(i)+…+W(k-1)；
where k is greater than or equal to 1 and less than or equal to Nn, Nn represents the number of frequency domain resources corresponding to the plurality of frequency domain resources, floor represents a lower rounding operation, UE _ ID represents an identity of the terminal, N represents the number of paging frames in one paging cycle, Ns represents the number of paging opportunities in one paging frame, mod represents a modulo operation, W represents a total weight value of the plurality of frequency domain resources, W (0) + W (1) + … + W (i) + … W (Nn-1), W (i) represents a weight value of an ith frequency domain resource of the plurality of frequency domain resources, and i is an integer greater than or equal to zero and less than or equal to k-1.
25. A communication apparatus, applied to a network device, the apparatus comprising:
a processing unit for determining a target frequency domain resource;
a receiving and sending unit, configured to send a target signal to a terminal on the target frequency domain resource;
the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging transmission, a bandwidth of the first frequency domain resource includes a synchronization signal block, and a bandwidth of the second frequency domain resource does not include the synchronization signal block;
if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal;
if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal;
the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
26. A communication apparatus, applied to a terminal, the apparatus comprising:
a processing unit for determining a target frequency domain resource;
a transceiving unit, configured to receive a target signal from a network device on the target frequency domain resource;
the target frequency domain resource is a first frequency domain resource or a second frequency domain resource, the first frequency domain resource or the second frequency domain resource is used for paging reception, a synchronization signal block is included in a bandwidth of the first frequency domain resource, and a synchronization signal block is not included in a bandwidth of the second frequency domain resource;
if the target frequency domain resource is a first frequency domain resource, the target signal is a first signal;
if the target frequency domain resource is a second frequency domain resource, the target signal is a second signal;
the first signal and the second signal differ in at least one of: signal type, function, time domain resource.
27. A network device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 1-12.
28. A terminal comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 13-24.
29. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 1-12 or 13-24.
30. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-12 or 13-24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315492.3A CN115134914A (en) | 2021-03-24 | 2021-03-24 | Communication method and related equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315492.3A CN115134914A (en) | 2021-03-24 | 2021-03-24 | Communication method and related equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115134914A true CN115134914A (en) | 2022-09-30 |
Family
ID=83374601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110315492.3A Pending CN115134914A (en) | 2021-03-24 | 2021-03-24 | Communication method and related equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115134914A (en) |
-
2021
- 2021-03-24 CN CN202110315492.3A patent/CN115134914A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107078890B (en) | Network node and method in a wireless telecommunications network | |
| CN107258105B (en) | Running paging mechanism to implement enhanced coverage mode | |
| KR102415868B1 (en) | Signal transmission method, network device and terminal device | |
| CN110892770B (en) | Method for transmitting signals, network device and terminal device | |
| CN110720242B (en) | Signaling of synchronization block patterns | |
| US12035321B2 (en) | Method and device for PDCCH monitoring | |
| JP7508639B2 (en) | Telecommunications Apparatus and Method | |
| EP3566367B1 (en) | Methods, device and node for adapting a numerology depending on a position of a wireless device | |
| EP3755067A1 (en) | Information processing method and apparatus | |
| JP2023089163A (en) | Paging method, terminal device, and network device | |
| US20230254080A1 (en) | Method and apparatus for transmitting and receiving sounding reference signal | |
| CN113228580A (en) | Method, device and system for configuring and determining paging opportunity | |
| CN115362724A (en) | Paging method, device, equipment and storage medium based on enhanced discontinuous reception | |
| JP7113030B6 (en) | Method and apparatus for intermittent reception | |
| US20220377809A1 (en) | Method and apparatus for random access procedure | |
| CN114616888A (en) | Measuring method and device, and terminal equipment | |
| US9820292B2 (en) | Network node, wireless device and method performed therein | |
| CN109565310B (en) | Reference signal allocation | |
| US20220312284A1 (en) | Neighbor cell measurements for narrowband communications | |
| CN115134914A (en) | Communication method and related equipment | |
| CN116491148A (en) | Data receiving method, data transmitting method and device | |
| US20230232263A1 (en) | Dynamic idle mode search and measurement scheduling based on reference signal measurement | |
| CN117441383A (en) | Method and device for determining time window and terminal equipment | |
| CN117441380A (en) | Method and device for determining transmission resources of energy-saving signals and terminal equipment | |
| CN114287114A (en) | Method and device for receiving signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |