Measurement Configuration Method and Apparatus
20200028599 ยท 2020-01-23
Inventors
Cpc classification
H04B7/024
ELECTRICITY
H04B17/104
ELECTRICITY
International classification
Abstract
Embodiments provide a measurement configuration method and apparatus. A first network device determines measurement configuration information of a first beam and/or a second beam and sends the measurement configuration information of the first beam and/or the second beam to first UE, and the first UE measures a first reference signal and/or a second reference signal based on the measurement configuration information.
Claims
1.-141. (canceled)
142. A method, comprising: determining, by a first network device, measurement configuration information of a first beam or measurement configuration information of a second beam; and sending, by the first network device, the measurement configuration information of the first beam or the measurement configuration information of the second beam to a first user equipment (UE); wherein the measurement configuration information of the first beam corresponds to a first reference signal sent in the first beam, and the measurement configuration information of the second beam corresponds to a second reference signal sent in the second beam, and each of the measurement configuration information of the first beam and the measurement configuration information of the second beam respectively comprises: a respective time domain resource occupied by the corresponding reference signal, wherein the respective time domain resource is a respective orthogonal frequency division multiplexing (OFDM) symbol quantity, a respective mini-subframe quantity, a respective subframe quantity, or a respective timeslot quantity; a respective sending duration or a respective sending window of the respective reference signal; a respective sending period of the corresponding reference signal; a respective distribution density or a respective distribution mode of the corresponding reference signal; a respective frequency domain offset of the corresponding reference signal; a synchronous offset of a second network device to which the first beam belongs, or a or a synchronous offset of a third network device to which the second beam belongs; a beam identifier corresponding to the first beam, or a beam identifier corresponding to the second beam, or a cell identifier corresponding to the second network device, or a cell identifier corresponding to the third network device; or a respective sequence identifier of the corresponding reference signal.
143. The method according to claim 142, wherein before determining, by the first network device, the measurement configuration information of the first beam or the measurement configuration information of the second beam, the method further comprises: receiving, by the first network device, first information sent by the first UE, wherein the first information comprises: indication information of a service type of the first UE, indication information of a detection type, or indication information of a UE capability, wherein the indication information of the UE capability indicates a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, or whether the first UE supports a plurality of links; and wherein determining, by the first network device, the measurement configuration information of the first beam or the measurement configuration information of the second beam comprises: determining, by the first network device, the measurement configuration information of the first beam or the measurement configuration information of the second beam based on the first information.
144. The method according to claim 143, wherein the indication information of the service type is a type identifier (ID) corresponding to the service type, and the indication information of the detection type is a destination ID corresponding to the detection type.
145. The method according to claim 143, wherein the indication information of the detection type indicates that the detection type is radio resource management (RRM) measurement or channel state information (CSI) measurement.
146. The method according to claim 142, wherein: the second beam is a neighboring beam of the first beam; the second beam is another beam of the second network device to which the first beam belongs; or the second beam is a beam of a fourth network device adjacent to the second network device to which the first beam belongs.
147. The method according to claim 142, further comprising: sending, by the first network device, measurement trigger information to the first UE, wherein the measurement trigger information triggers the first UE to: measure the first reference signal of the first beam based on the measurement configuration information of the first beam; or measure the second reference signal of the second beam based on the measurement configuration information of the second beam.
148. The method according to claim 147, wherein: the measurement trigger information comprises a first preset threshold and a second preset threshold; when a signal strength of the first reference signal of the first beam is measured by the first UE to be less than the first preset threshold, the first UE measures the second reference signal of the second beam; and when a signal strength of the first reference signal of the first beam is measured by the first UE to be less than the second preset threshold, the first UE measures the second reference signal of a third beam belonging to a same network device as the first beam.
149. A method, comprising: receiving, by first user equipment (UE), measurement configuration information of a first beam or measurement configuration information of a second beam, wherein the measurement configuration information of the first beam or the measurement configuration information of the second beam is sent by a first network device; and measuring, by the first UE, a first reference signal corresponding to the first beam based on the measurement configuration information of the first beam, or measuring, by the first UE, a second reference signal based on the measurement configuration information of the second beam; wherein the measurement configuration information of the first beam is measurement configuration information of the first reference signal sent in the first beam, and the measurement configuration information of the second beam is measurement configuration information of the second reference signal sent in the second beam; and the measurement configuration information of the first beam or the measurement configuration information of the second beam comprises: a respective time domain resource occupied by the corresponding reference signal, wherein the respective time domain resource is a respective orthogonal frequency division multiplexing (OFDM) symbol quantity, a respective mini-subframe quantity, a respective subframe quantity, or a respective timeslot quantity; a respective sending duration or a respective sending window of the corresponding reference signal; a respective sending period of the corresponding reference signal; a respective distribution density or a respective distribution mode of the corresponding reference signal; a respective frequency domain offset of the corresponding reference signal; a synchronous offset of a second network device to which the first beam belongs, or a synchronous offset of a third network device to which the second beam belongs; a beam identifier corresponding to the first beam, or a beam identifier corresponding to the second beam, or a cell identifier corresponding to the second network device, or a cell identifier corresponding to the third network device; and a respective sequence identifier of the corresponding reference signal.
150. The method according to claim 149, wherein before receiving, by the first UE, the measurement configuration information of the first beam or the measurement configuration information of the second beam, the method further comprises: sending, by the first UE, first information to the first network device, wherein the first information comprises: indication information of a service type of the first UE; indication information of a detection type; or indication information of a UE capability.
151. The method according to claim 150, wherein: indication information of the UE capability indicates a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, or whether the first UE supports a plurality of links.
152. The method according to claim 150, wherein the indication information of the service type is a type identifier ID corresponding to the service type, and the indication information of the detection type is a destination ID corresponding to the detection type, and wherein the indication information of the detection type indicates that the detection type is radio resource management (RRM) measurement or channel state information (CSI) measurement.
153. The method according to claim 149, wherein: the second beam is a neighboring beam of the first beam; the second beam is another beam of the second network device to which the first beam belongs; or the second beam is a beam of a fourth network device adjacent to the second network device to which the first beam belongs.
154. The method according to claim 149, further comprising: receiving, by the first UE, measurement trigger information sent by the first network device; wherein measuring, by the first UE, the first reference signal corresponding to the first beam based on the measurement configuration information of the first beam, or measuring the second reference signal corresponding to the second beam based on the measurement configuration information of the second beam, comprises: in response to receiving measurement trigger information, measuring, by the first UE, the first reference signal corresponding to the first beam based on the measurement configuration information of the first beam; or measuring the second reference signal corresponding to the second beam based on the measurement configuration information of the second beam.
155. The method according to claim 154, wherein: the measurement trigger information comprises a first preset threshold; when a signal strength of the first reference signal corresponding to the first beam that is received by the first UE is less than the first preset threshold, the first UE measures the second reference signal corresponding to the second beam.
156. The method according to claim 154, wherein the measurement trigger information comprises a second preset threshold; and when a signal strength of the first reference signal corresponding to the first beam that is received by the first UE is less than the second preset threshold, the first UE measures the second reference signal corresponding to the second beam, wherein the second beam belongs to the second network device.
157. The method according to claim 149, further comprising: receiving, by the first UE, a first radio network temporary identifier (RNTI) sent by the first network device; wherein receiving, by the first UE, the measurement configuration information of the first beam, or the measurement configuration information of the second beam, comprises: descrambling, by the first UE using the first RNTI, the measurement configuration information of the first beam or the measurement configuration information of the second beam, or activation information of the measurement configuration information of the first beam, or activation information of the measurement configuration information of the second beam.
158. An apparatus, comprising: a processor, configured to determine measurement configuration information of a first beam or measurement configuration information of a second beam; and a transmitter, configured to send the measurement configuration information of the first beam or the measurement configuration information of the second beam to a first user equipment (UE); wherein the measurement configuration information of the first beam corresponds to a first reference signal sent in the first beam, and the measurement configuration information of the second beam corresponds to a second reference signal sent in the second beam, and the measurement configuration information of the first beam or the measurement configuration information of the second beam comprises: a respective time domain resource occupied by a corresponding reference signal, wherein the respective time domain resource is a respective orthogonal frequency division multiplexing (OFDM) symbol quantity, a respective mini-subframe quantity, a respective subframe quantity, or a respective timeslot quantity; a respective sending duration or a respective sending window of the corresponding reference signal; a respective sending period of the corresponding reference signal; a respective distribution density or a respective distribution mode of the corresponding reference signal; a respective frequency domain offset of the corresponding reference signal; a respective synchronous offset of a second network device to which the first beam belongs, or a respective synchronous offset of a third network device to which the the second beam belongs; a beam identifier corresponding to the first beam, or a beam identifier corresponding to the second beam, or a cell identifier corresponding to the second network device, or a cell identifier corresponding to the third network device; or a respective sequence identifier of the corresponding reference signal.
159. The apparatus according to claim 158, further comprising: a receiver, configured to receive first information sent by the first UE, wherein the first information comprises: indication information of a service type of the first UE, indication information of a detection type, or indication information of a UE capability, wherein the indication information of the UE capability indicates a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, or whether the first UE supports a plurality of links; and wherein the processor is configured to determine the measurement configuration information of the first beam or the measurement configuration information of the second beam based on the first information.
160. The apparatus according to claim 158, wherein: the second beam is a neighboring beam of the first beam; the second beam is another beam of the second network device to which the first beam belongs; or the second beam is a beam of a fourth network device adjacent to the second network device to which the first beam belongs.
161. The apparatus according to claim 158, wherein the transmitter is further configured to send measurement trigger information to the first UE, wherein the measurement trigger information triggers: measurement of the first reference signal corresponding to the first beam based on the measurement configuration information of the first beam; or measurement of the second reference signal corresponding to the second beam based on the measurement configuration information of the second beam.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0148] To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and persons of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
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DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
[0161] The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are merely some but not all of the embodiments of the present disclosure. All other embodiments obtained by person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.
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[0163] In this embodiment of the present disclosure, on a precondition that the first UE is in a connected mode, the first network device determines measurement configuration information of a first beam and/or a second beam and sends the measurement configuration information of the first beam and/or the second beam to the first UE. The first beam is a serving beam of the first UE, and the second beam is another beam of the first network device to which the first beam belongs and a beam of the second network device. Measurement configuration information of each beam is used by the first UE to measure a reference signal corresponding to the beam. Because the first UE directly receives the measurement configuration information of the first beam and/or the second beam from the first network device, the first UE does not need to determine the measurement configuration information through blind detection or the like, thereby reducing overheads.
[0164] In this embodiment of the present disclosure, the first network device further sends measurement trigger information to the first UE, where the measurement trigger information may include a preset threshold, so that the first UE compares the preset threshold with signal strength of a received reference signal of the first beam, to determine whether to measure a reference signal of the second beam.
[0165] In this embodiment of the present disclosure, the second UE having common information with the first UE is further determined, and measurement reference information of the first beam and/or the second beam that is scrambled by using a same particular radio network temporary identity (RNTI) (referred to as a first RNTI) is sent to the first UE and the second UE, so that the first UE and the second UE descramble the measurement reference information of the first beam and/or the second beam by using the first RNTI, to determine the measurement reference information of the first beam and/or the second beam.
[0166] The following describes technical solutions of the present disclosure in detail with reference to specific embodiments. The following specific embodiments may be mutually combined, and same or similar concepts or processes may not be repeatedly described in some embodiments.
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[0168] S201: A first network device determines measurement configuration information of a first beam and/or a second beam.
[0169] The first network device is a first base station, a first TRP, a base station to which a first cell belongs, or a transmission point TRP to which a first cell belongs, where the first cell is a physical cell or a virtual cell, and the virtual cell may include one or more TRPs.
[0170] The first beam is a serving beam of first UE.
[0171] The second beam is one or more beams that are selected by the first network device and that belong to the first network device or a network device adjacent to the first network device. To be specific, the second beam is an adjacent beam of the first beam; or the second beam is another beam of a network device to which the first beam belongs; or the second beam is a beam of an adjacent network device of a network device to which the first beam belongs.
[0172] Optionally, the first network device may select the second beam based on first information, where the first information includes at least one of the following: indication information of a service type of the first UE, indication information of a detection type, and indication information of a UE capability.
[0173] The measurement configuration information of the first beam is measurement configuration information of a first reference signal sent in the first beam, and the measurement configuration information of the second beam is measurement configuration information of a second reference signal sent in the second beam.
[0174] The measurement configuration information includes at least one of the following: a time domain resource occupied by a reference signal, where the time domain resource is an orthogonal frequency division multiplexing (OFDM) symbol quantity, a mini-subframe quantity, a subframe quantity, or a timeslot quantity, the reference signal is the first reference signal and/or the second reference signal, to satisfy a low latency requirement, a quantity of OFDMs into which a beam-specific reference signal (BRS) or a mobility-specific reference signal (MRS) is compressed needs to be used; sending duration or a sending window of the reference signal; a sending period of a reference signal, where the period is shorter than that of a periodic BRS; a distribution density or a distribution mode of a reference signal, where to satisfy a low-latency requirement, an entire channel feature needs to be extracted from OFDM duration into which a BRS is compressed, to improve a density used for BRS configuration; a frequency domain offset of a reference signal, where when receive beams are the same, time and frequency domains and the like need to be coordinated, and it is required that a frequency domain offset is used for coordinated configuration of a neighboring beam or a network device; a synchronous offset of a network device to which the first beam and/or the second beam belongs, where because different beams or TRPs may be asynchronous, a synchronous offset is required; a beam identifier corresponding to the first beam and/or the second beam and/or a cell identifier corresponding to a network device to which the first beam and/or the second beam belongs, where the cell identifier is a physical cell identifier, a virtual cell identifier, or a combination of a virtual cell identifier and a relative identifier of a TRP in the virtual cell, where the beam identifier may further be a beam pair identifier, that is, a transmit beam identifier of the network device and a receive beam identifier of user equipment; and a sequence identifier of the reference signal.
[0175] Optionally, the reference signal is an aperiodic reference signal.
[0176] Optionally, the reference signal is a reference signal based on beamforming.
[0177] S202: The first network device sends the measurement configuration information of the first beam and/or the second beam to first UE.
[0178] Optionally, the measurement configuration information may be configured by using higher layer signaling, Media Access Control (MAC) signaling, or physical layer signaling, and configuring by using the physical layer signaling may be preconfiguring and activating a corresponding configuration feature by using a PDCCH command.
[0179] The measurement configuration information of the first beam and/or the second beam may be sent to the first UE by using a physical downlink control channel (PDCCH) whose format is redefined or particular content of a physical downlink shared channel (PDSCH).
[0180] When the measurement configuration information is sent by using the PDCCH whose format is redefined, a PDCCH command is preconfigured and is used for activation/deactivation; or a bit or DCI (downlink control information) on the PDCCH is re-explained.
[0181] When the measurement configuration information is sent by using the particular content of the PDSCH, the particular content includes: beamed reference signal receiving power (BRSRP)/beamed reference signal receiving quality (BRSRQ)/a beamed received signal strength indication (BRSSI)/a beamed received channel power indication (BRCPI).
[0182] The measurement configuration information of the first beam and/or the second beam that is sent to the first UE may further additionally indicate that a measurement result is sent by using a particular feedback resource. An example is as follows.
[0183] The particular feedback resource is in a specified cell or beam, and is time domain and frequency domain resources in a particular cell beam. Therefore, a measurement result may be fed back on a corresponding resource.
[0184] S203: The first UE measures a first reference signal and/or a second reference signal based on the measurement configuration information.
[0185] Optionally, before S201, the method further includes the following.
[0186] S200: The first network device receives first information sent by the first UE.
[0187] The first information includes at least one of the following: indication information of a service type of the first UE, indication information of a detection type, and indication information of a UE capability.
[0188] A service type of the first UE is any one of the following: a mobile broadband service or enhanced mobile broadband, (xMBB); a massive low-power-consumption connection or machine type communication service (mMTC); and an ultra-reliable and low latency service (URLL).
[0189] The indication information of the detection type is used to indicate that the detection type is radio resource management (RRM) measurement or channel state information (CSI) measurement.
[0190] The UE capability is used to indicate a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, and/or whether the first UE supports a plurality of links. The angle or the width may be an absolute value within a circumference or a relative value relative to a reference point. Beams included by the second beam and devices included by the second network device depend on the UE capability. A beam used by UE to feed back received signal strength and the received signal strength that is fed back may be used to determine an approximate location of the UE. Therefore, beams included by the second beam or devices and beams included by the second network device and the second beam are deduced.
[0191] Optionally, in a possible implementation, the indication information of the service type is a type identifier ID corresponding to the service type, and the indication information of the detection type is a destination ID corresponding to the detection type.
[0192] Table 1 is as follows:
TABLE-US-00001 TABLE 1 Service type Type ID Detection type Destination ID xMBB 00 RRM 0 mMTC 01 CSI 1 URLL 10 Other . . .
[0193] The indication information of a UE capability includes a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, and/or whether the first UE supports a plurality of links.
[0194] Correspondingly, S201 is specifically: determining, by the first network device, the measurement configuration information of the first beam and/or the second beam based on the first information.
[0195] For example, when a service type is URLL, an ultra-low latency is a main objective. Therefore, an OFDM symbol quantity obtained after compression in time domain may be used to obtain entire reference signal (RS) information. When a service type is mMTC, requirements on bandwidth and a quantity of a plurality of links are not high, but a requirement on a battery service life is relatively high. Because MTC uses a short data packet and is used for non-urgent quality of service (QoS), when the second beam is determined, fewer network devices or beams are required. When a service type is xMBB, because a requirement on bandwidth is higher, more network devices or beams are required.
[0196] For different services, quantities of surrounding beams that need to be activated are different. For example, for an MBB service, a relatively large quantity of beams need to be activated for BRS transmission, for example, beams 1, 5, 7, and 8. However, for an MTC service, a relatively small quantity of beams need to be activated for BRS transmission, for example, the beam 1. For URLL, an intermediate value may be used, for example, the beams 1 and 5. For an MBB service, a quantity of OFDM symbols occupied by a reference signal may be a normal subframe, for example, 1 subframe. However, for an URLL service, a relatively small quantity of OFDM symbols are required for corresponding detection, for example, there may be one or more OFDM symbols. Distribution densities of reference signals are also different, different indexes may be defined to correspond to different densities. For example, sparse corresponds to o and dense corresponds to 1. Therefore, an index is used to indicate a density degree. For a frequency domain offset, different services may correspond to X3, Y3, and Z3, and the value ranges fall within an entire frequency range. An offset is based on a quantity of physical resource blocks (PRBs), a quantity of resource elements (REs), or any new resource granularity defined in a 5G system. A synchronous offset may be based on an absolute value in time domain, a subframe, a timeslot, an OFDM symbol, or any new resource granularity (which may be, for example, a mini-subframe, a mini-slot, or one or more OFDM symbol lengths) defined in a 5G system. A power offset may be an absolute value or a relative value obtained after original power is adjusted.
[0197] In this embodiment, the first network device determines the measurement configuration information of the first beam and/or the second beam and sends the measurement configuration information of the first beam and/or the second beam to the first UE, and the first UE measures the first reference signal and/or the second reference signal based on the measurement configuration information. In this way, the first UE directly receives the measurement configuration information of the first beam and/or the second beam from the first network device, and the first UE does not need to determine the measurement configuration information through blind detection or the like, thereby reducing overheads. Further, the first UE sends the first information to the first network device, and the first network device determines the measurement configuration information of the first beam and/or the second beam based on the first information. Therefore, the determined measurement configuration information matches a user requirement. In addition, a network device performs coordination to obtain configuration information of the first network device and/or the second network device on a network side based on a user requirement, thereby preventing a user from being interfered when the user receives a network device user, so that the user can perform measurement more accurately and effectively.
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[0199] When the first network device needs to determine the measurement configuration information of the second beam belonging to the second network device, the following possible implementation may be used.
[0200] S2011: The first network device sends first information to a second network device.
[0201] After the first network device receives the first information, the second network device is determined based on a UE capability in the first information, and the first information is sent to the second network device, so that the second network device learns of the first information of the first UE.
[0202] Optionally, the first information may be notified or exchanged by using air interface signaling or interface signaling between the first network device and the second network device.
[0203] S2012: The second network device determines the measurement configuration information of the second beam of the second network device based on the first information sent by the first network device.
[0204] S2013: The first network device receives the measurement configuration information that is of the second beam belonging to the second network device and that is sent by the second network device.
[0205] When the first network device needs to determine the measurement configuration information of the first beam and the second beam belonging to the first network device, the following possible implementation may be used.
[0206] S2010: The first network device determines, based on the first information, the measurement configuration information of the first beam and the second beam that belongs to the first network device.
[0207] When the first network device needs to determine the measurement configuration information of the first beam and the second beam that belongs to the first network device, the measurement configuration information of the second beam belonging to the second network device also needs to be determined, and a determining sequence is not limited. To be specific, S2010 and S2011 to S2013 may be simultaneously performed; S2010 may be performed first and S2011 to S2013 are then performed; or S2011-S2013 may be performed first and S2010 is then performed. This is not limited in the present disclosure.
[0208] In this embodiment, the first network device sends the first information to the second network device, so that the second network device learns of a related status of the first UE based on the first information, determines the measurement configuration information of the second beam of the second network device based on the first information, and sends the measurement configuration information of the second beam of the second network device to the first network device, so that the first network device sends the measurement configuration information of the second beam of the second network device to the first UE. Therefore, the first UE does not need to determine the measurement configuration information of the first beam and/or the second beam one by one through blind detection, thereby reducing overheads. In addition, because the measurement configuration information of the first beam and/or the second beam is determined based on the first information, the determined measurement configuration information is more accurate.
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[0210] S204: The first network device sends measurement trigger information to the first UE.
[0211] A threshold for determining whether to measure the second beam may be sent to the first UE by using particular content of a PDSCH. For details of the particular content of the PDSCH, refer to detailed descriptions of S202.
[0212] The measurement trigger information is used to trigger measurement of the second reference signal of the second beam based on the measurement configuration information of the second beam or measurement of the first reference signal of the first beam based on the measurement configuration information of the first beam.
[0213] Optionally, the measurement trigger information includes a first preset threshold. The first preset threshold is used to instruct, when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the first preset threshold, to measure the second reference signal of the second beam, where the second beam includes a second beam belonging to the first network device and a second beam belonging to the second network device.
[0214] Optionally, the measurement trigger information further includes a second preset threshold, where the second preset threshold is greater than the first preset threshold. The second preset threshold is used to instruct, when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the second preset threshold, to measure the second reference signal of the second beam belonging to a same network device as the first beam. To be specific, the reference signal of the second beam of the first network device is measured, to switch to the second beam of the first network device based on a measurement result, so that the second beam after changing or switching is used as a serving beam of the first UE.
[0215] For different service types, the preset threshold may be set differently. For example, for URLL, the second threshold may be a larger value to help faster activation and more reliable connection, and when signal strength of a serving beam is less than the second preset threshold, a reference signal of another second beam starts to be measured. For an xMBB service, the first preset threshold may be a smaller value, to reduce unnecessary measurement and beam switching, thereby reducing overheads.
[0216] S205: The first UE determines, based on the measurement trigger information, to measure the second beam.
[0217] In this embodiment, the first network device sends the measurement trigger information to the first UE, so that the first UE measures the second beam based on the measurement trigger information, thereby reducing measurement overheads.
[0218] As shown in
[0219] Measurement trigger information within one cell may be different from measurement trigger information within another cell, to reduce unnecessary detection.
[0220] For example, when UE is in a connected mode in a transmit beam T1 of the TRP1 by using a receive beam R2, the UE may be activated to detect a transmit beam T2 of the TRP1 by using a receive beam R1.
[0221] A detection threshold may be a threshold 1 and is used to establish connectivity within a TRP (that is, when signal strength of a current serving beam is less than the threshold 1, a notified surrounding beam for transmitting a BRS is detected).
[0222] The UE may be alternatively activated to detect a transmit beam T3 of the TRP2 by using a receive beam R3.
[0223] The detection threshold may be a threshold 2 and is used to establish connectivity between TRPs.
[0224] In addition, the UE may be alternatively activated to detect a transmit beam T4 of the TRP3 by using a receive beam R4.
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[0226] S2014: The first network device receives second information sent by at least one second UE.
[0227] The second information includes: indication information of a service type of the second UE, indication information of a detection type, and/or indication information of a UE capability.
[0228] For the indication information of the service type, the indication information of the detection type, and/or the indication information of the UE capability, refer to detailed descriptions in S200, and details are not described herein again.
[0229] S2015: The first network device determines, based on the second information and the first information, that the second UE and the first UE have common information.
[0230] Having common information means that service types, detection types, and UE capabilities are all the same.
[0231] S2016: The first network device sends the first RNTI to the first UE and the second UE.
[0232] The first RNTI is a measurement configuration detection RNTI or a measurement configuration activation RNTI of the reference signal.
[0233] The first RNTI is used to scramble the measurement configuration information or the measurement configuration activation information for a group of UEs having common information.
[0234] S2017: The first network device scrambles the measurement configuration information or measurement configuration activation information by using the first RNTI.
[0235] S2018: The first network device sends the scrambled measurement configuration information or the scrambled measurement configuration activation information.
[0236] S2019: The first UE and the second UE descramble the measurement configuration information of the first beam and/or the second beam or activation information of the measurement configuration information by using the first RNTI.
[0237] In this embodiment, the second UE having common information with the first UE is determined based on the second information sent by the second UE and the first information sent by the first UE, the first UE and the second UE having common information are used as a group of UEs, and the common first RNTI is sent to the group of UEs, so that the group of UEs descramble the measurement configuration information of the first beam and/or the second beam based on the first RNTI, thereby further reducing overheads.
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[0239] The reference signal is a reference signal based on beamforming.
[0240] The beam identifier is a beam pair identifier, and the beam pair includes a transmit beam identifier of the network device and a receive beam identifier of the user equipment.
[0241] Further, the apparatus further includes: a receiving module 603, configured to receive first information sent by the first UE, where the first information includes at least one of the following: indication information of a service type of the first UE, indication information of a detection type, and indication information of a UE capability; and the processing module 601 is specifically configured to determine the measurement configuration information of the first beam and/or the second beam based on the first information.
[0242] The first network device is at least one of the following: a first base station, a first transmission point TRP, and a base station to which a first cell belongs or a transmission point TRP to which a first cell belongs; and the first cell is a physical cell or a virtual cell, and the virtual cell may include one or more TRPs.
[0243] The cell identifier is a physical cell identifier, a virtual cell identifier, or a combination of a virtual cell identifier and a relative identifier of the network device in the virtual cell.
[0244] The second beam is an adjacent beam of the first beam; the second beam is another beam of the network device to which the first beam belongs; or the second beam is a beam of a network device adjacent to the network device to which the first beam belongs.
[0245] The reference signal is an aperiodic reference signal.
[0246] The second beam is one or more beams that are selected by the first network device and that belong to the first network device or a network device adjacent to the first network device.
[0247] The second beam is one or more beams that are selected by the first network device based on the first information and that belong to the first network device or a network device adjacent to the first network device.
[0248] The UE capability is used to indicate at least one of a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, and whether the first UE supports a plurality of links.
[0249] The indication information of the service type is a type identifier ID corresponding to the service type; and the detection type indication is a destination ID corresponding to the detection type.
[0250] The indication information of the detection type is used to indicate that the detection type is radio resource management (RRM) measurement or channel state information (CSI) measurement.
[0251] A service type of the first UE is any one of the following: a mobile broadband service xMBB; a machine type communication service mMTC; and an ultra-reliable and low latency service URLL.
[0252] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0253] In
[0254] The processing module 601 is further configured to determine, based on the first information, the measurement configuration information of the first beam and the second beam that belongs to the first network device.
[0255] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0256] In
[0257] The measurement trigger information includes a first preset threshold; and the first preset threshold is used to instruct: when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the first preset threshold, to measure the second reference signal of the second beam.
[0258] The measurement trigger information includes a second preset threshold; and the second preset threshold is used to instruct, when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the second preset threshold, to measure the second reference signal of the second beam belonging to a same network device as the first beam.
[0259] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0260] In
[0261] The first RNTI is a measurement configuration detection RNTI or a measurement configuration activation RNTI of the reference signal.
[0262] The first RNTI is used to scramble the measurement configuration information or the activation information of the measurement configuration information for a group of UEs having common information.
[0263] The receiving module 603 is specifically configured to receive second information sent by at least one second UE, where the second information includes: indication information of a service type of the second UE, indication information of a detection type, and/or indication information of a UE capability; the processing module 601 is specifically configured to determine, based on the second information and the first information, that the second UE and the first UE have common information; and the sending module is specifically configured to send, to the first UE and the second UE, the measurement configuration information that is scrambled by using the first RNTI.
[0264] The measurement configuration information is configured by using higher layer signaling, Media Access Control (MAC) signaling, or physical layer signaling, and configuring by using the physical layer signaling may be preconfiguring and activating a corresponding configuration feature by using a PDCCH command.
[0265] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0266]
[0267] Further, the apparatus further includes: a receiving module 703, configured to receive first information sent by the first network device, where the first information includes at least one of the following: indication information of a service type of the first UE; indication information of a detection type; and indication information of a UE capability; and the determining, by a second network device, measurement configuration information of a second beam includes: determining, by the second network device, the measurement configuration information of the second beam based on the first information.
[0268]
[0269] The reference signal is a reference signal based on beamforming.
[0270] The beam identifier is a beam pair identifier, and the beam pair includes a transmit beam identifier of the network device and a receive beam identifier of the user equipment.
[0271] Further, the apparatus further includes: a sending module 803, configured to send first information to the first network device, where the first information includes at least one of the following: indication information of a service type of the first UE; indication information of a detection type; and indication information of a UE capability.
[0272] The first network device is at least one of the following: a first base station, a first transmission point (TRP), and a base station to which a first cell belongs or a transmission point (TRP) to which a first cell belongs; and the first cell is a physical cell or a virtual cell, and the virtual cell may include one or more TRPs.
[0273] The cell identifier is a physical cell identifier, a virtual cell identifier, or a combination of a virtual cell identifier and a relative identifier of the network device in the virtual cell.
[0274] The second beam is an adjacent beam of the first beam; the second beam is another beam of the network device to which the first beam belongs; or the second beam is a beam of a network device adjacent to the network device to which the first beam belongs.
[0275] The reference signal is an aperiodic reference signal.
[0276] The second beam is one or more beams that are selected by the first network device and that belong to the first network device or a network device adjacent to the first network device.
[0277] The second beam is one or more beams that are selected by the first network device based on the first information and that belong to the first network device or a network device adjacent to the first network device.
[0278] The UE capability is used to indicate at least one of a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, and whether the first UE supports a plurality of links.
[0279] The indication information of the service type is a type identifier ID corresponding to the service type; and the detection type indication is a destination ID corresponding to the detection type.
[0280] The indication information of the detection type is used to indicate that the detection type is radio resource management (RRM) measurement or channel state information (CSI) measurement.
[0281] A service type of the first UE is any one of the following: a mobile broadband service (xMBB); a machine type communication service (mMTC); and an ultra-reliable and low latency service (URLL).
[0282] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0283] In
[0284] The measurement trigger information includes a first preset threshold; and the first preset threshold is used to instruct: when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the first preset threshold, to measure the second reference signal of the second beam.
[0285] The measurement trigger information further includes a second preset threshold; and the second preset threshold is used to instruct, when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the second preset threshold, to measure the second reference signal of the second beam belonging to a same network device as the first beam.
[0286] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0287] In
[0288] The first RNTI is a measurement configuration detection RNTI or a measurement configuration activation RNTI of the reference signal.
[0289] The first RNTI is used to scramble the measurement configuration information or the activation information of the measurement configuration information for a group of UEs having common information.
[0290] The measurement configuration information is configured by using higher layer signaling, Media Access Control (MAC) signaling, or physical layer signaling, and configuring by using the physical layer signaling may be preconfiguring and activating a corresponding configuration feature by using a PDCCH command.
[0291] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0292]
[0293] The reference signal is a reference signal based on beamforming.
[0294] The beam identifier is a beam pair identifier, and the beam pair includes a transmit beam identifier of the network device and a receive beam identifier of the user equipment.
[0295] Further, the apparatus further includes: a receiver 903, configured to receive first information sent by the first UE, where the first information includes at least one of the following: indication information of a service type of the first UE, indication information of a detection type, and indication information of a UE capability; and the processor 901 is specifically configured to determine the measurement configuration information of the first beam and/or the second beam based on the first information.
[0296] The first network device is at least one of the following: a first base station, a first transmission point TRP, and a base station to which a first cell belongs or a transmission point TRP to which a first cell belongs; and the first cell is a physical cell or a virtual cell, and the virtual cell may include one or more TRPs.
[0297] The cell identifier is a physical cell identifier, a virtual cell identifier, or a combination of a virtual cell identifier and a relative identifier of the network device in the virtual cell.
[0298] The second beam is an adjacent beam of the first beam; the second beam is another beam of the network device to which the first beam belongs; or the second beam is a beam of a network device adjacent to the network device to which the first beam belongs.
[0299] The reference signal is an aperiodic reference signal.
[0300] The second beam is one or more beams that are selected by the first network device and that belong to the first network device or a network device adjacent to the first network device.
[0301] The second beam is one or more beams that are selected by the first network device based on the first information and that belong to the first network device or a network device adjacent to the first network device.
[0302] The UE capability is used to indicate at least one of a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, and whether the first UE supports a plurality of links.
[0303] The indication information of the service type is a type identifier ID corresponding to the service type; and the detection type indication is a destination ID corresponding to the detection type.
[0304] The indication information of the detection type is used to indicate that the detection type is radio resource management (RRM) measurement or channel state information (CSI) measurement.
[0305] A service type of the first UE is any one of the following: a mobile broadband service (xMBB); a machine type communication service (mMTC); and an ultra-reliable and low latency service (URLL).
[0306] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0307] In
[0308] The processor 901 is further configured to determine, based on the first information, the measurement configuration information of the first beam and the second beam that belongs to the first network device.
[0309] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0310] In
[0311] The measurement trigger information includes a first preset threshold; and the first preset threshold is used to instruct: when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the first preset threshold, to measure the second reference signal of the second beam.
[0312] The measurement trigger information includes a second preset threshold; and the second preset threshold is used to instruct, when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the second preset threshold, to measure the second reference signal of the second beam belonging to a same network device as the first beam.
[0313] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0314] In
[0315] The first RNTI is a measurement configuration detection RNTI or a measurement configuration activation RNTI of the reference signal.
[0316] The first RNTI is used to scramble the measurement configuration information or the activation information of the measurement configuration information for a group of UEs having common information.
[0317] The receiver 903 is specifically configured to receive second information sent by at least one second UE, where the second information includes: indication information of a service type of the second UE, indication information of a detection type, and/or indication information of a UE capability; the processor 901 is specifically configured to determine, based on the second information and the first information, that the second UE and the first UE have common information; and the sending module is specifically configured to send, to the first UE and the second UE, the measurement configuration information or the activation information of the measurement configuration information that is scrambled by using the first RNTI.
[0318] The measurement configuration information is configured by using higher layer signaling, Media Access Control (MAC) signaling, or physical layer signaling, and configuring by using the physical layer signaling may be preconfiguring and activating a corresponding configuration feature by using a PDCCH command.
[0319] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0320]
[0321] Further, the apparatus further includes: a receiver 1003, configured to receive first information sent by the first network device, where the first information includes at least one of the following: indication information of a service type of the first UE; indication information of a detection type; and indication information of a UE capability; and the determining, by a second network device, measurement configuration information of a second beam includes: determining, by the second network device, the measurement configuration information of the second beam based on the first information.
[0322]
[0323] The beam identifier is a beam pair identifier, and the beam pair includes a transmit beam identifier of the network device and a receive beam identifier of the user equipment.
[0324] The reference signal is a reference signal based on beamforming.
[0325] Further, the apparatus further includes: a transmitter 1103, configured to send first information to the first network device, where the first information includes at least one of the following: indication information of a service type of the first UE; indication information of a detection type; and indication information of a UE capability.
[0326] The first network device is at least one of the following: a first base station, a first transmission point (TRP), and a base station to which a first cell belongs or a transmission point (TRP) to which a first cell belongs; and the first cell is a physical cell or a virtual cell, and the virtual cell may include one or more TRPs.
[0327] The cell identifier is a physical cell identifier, a virtual cell identifier, or a combination of a virtual cell identifier and a relative identifier of the network device in the virtual cell.
[0328] The second beam is an adjacent beam of the first beam; the second beam is another beam of the network device to which the first beam belongs; or the second beam is a beam of a network device adjacent to the network device to which the first beam belongs.
[0329] The reference signal is an aperiodic reference signal.
[0330] The second beam is one or more beams that are selected by the first network device and that belong to the first network device or a network device adjacent to the first network device.
[0331] The second beam is one or more beams that are selected by the first network device based on the first information and that belong to the first network device or a network device adjacent to the first network device.
[0332] The UE capability is used to indicate at least one of a beam quantity supported by the first UE, an angle covered by a beam of the first UE, a beam width of the first UE, and whether the first UE supports a plurality of links.
[0333] The indication information of the service type is a type identifier ID corresponding to the service type; and the detection type indication is a destination ID corresponding to the detection type.
[0334] The indication information of the detection type is used to indicate that the detection type is radio resource management (RRM) measurement or channel state information (CSI) measurement.
[0335] A service type of the first UE is any one of the following: a mobile broadband service (xMBB); a machine type communication service (mMTC); and an ultra-reliable and low latency service (URLL).
[0336] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0337] In
[0338] The measurement trigger information includes a first preset threshold; and the first preset threshold is used to instruct: when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the first preset threshold, to measure the second reference signal of the second beam.
[0339] The measurement trigger information further includes a second preset threshold; and the second preset threshold is used to instruct, when signal strength of the first reference signal that is of the first beam and that is received by the first UE is less than the second preset threshold, to measure the second reference signal of the second beam belonging to a same network device as the first beam.
[0340] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0341] In
[0342] The first RNTI is a measurement configuration detection RNTI or a measurement configuration activation RNTI of the reference signal.
[0343] The first RNTI is used to scramble the measurement configuration information or the activation information of the measurement configuration information for a group of UEs having common information.
[0344] The measurement configuration information is configured by using higher layer signaling, Media Access Control (MAC) signaling, or physical layer signaling, and configuring by using the physical layer signaling may be preconfiguring and activating a corresponding configuration feature by using a PDCCH command.
[0345] The apparatus in this embodiment may be configured to correspondingly perform the technical solution of the method embodiment shown in
[0346] Finally, it should be noted that the foregoing embodiments are merely intended for describing the technical solutions of the present disclosure, but not for limiting the present disclosure. Although the present disclosure is described in detail with reference to the foregoing embodiments, persons of ordinary skill in the art should understand that they may still make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to some or all technical features thereof, without departing from the scope of the technical solutions of the embodiments of the present disclosure.